Competitive Research

Bilko — Competitive Research

Version: 2.0 Date: 2026-02-24 Researcher: Bilko Docs Team (AI-assisted research, February 2026) Status: Current

Table of Contents

  1. Executive Summary
  2. Competitor Profiles
  3. Feature Comparison Matrix
  4. Pricing Comparison Matrix
  5. API Pattern Analysis
  6. Security Comparison
  7. Balkan Market Gap Analysis
  8. Key Takeaways for Bilko Positioning

1. Executive Summary

Bilko is a cloud accounting SaaS for Balkan SMBs (Serbia, BiH, Croatia). The competitive landscape reveals a clear market gap: no global accounting software natively supports SEF (Serbia), UIO VAT (BiH), or HR-FISK (Croatia) compliance out of the box. Regional solutions exist (Minimax, e-racuni, Eurofaktura) but lack modern SaaS UX or multi-country coverage.

Primary inspiration: Fiken (Norway) — simple, beautiful, built for local compliance. Bilko = Fiken for the Balkans.

Key February 2026 regulatory updates:

Key opportunities from this research:

  1. Global players (Zoho Books, Wave, FreshBooks) have zero Balkan compliance features — high switching cost for current users
  2. Fiken's success with a simple flat pricing model at ~€18/month proves SMBs pay for simplicity + compliance
  3. FreeAgent's bank integration model (free with partner bank) is a growth hack applicable to Balkan banking partners
  4. No competitor offers native SEF + HR-FISK + UIO (BiH) in a single product
  5. Wave's freemium to paid conversion playbook is directly applicable (free invoicing → paid for bank feeds + payroll)
  6. New threat: Minimax has Croatia (Fiskalizacija 2.0) and Serbia subsidiaries — first regional competitor with modern cloud UX + Balkan compliance. Bilko must position against them.

2. Competitor Profiles

2.1 Fiken (Norway)

Overview: The direct inspiration for Bilko. Fiken is Norway's leading cloud accounting SaaS for small businesses and freelancers. Built from the ground up for Norwegian compliance (Altinn VAT, EHF e-invoicing, payroll). Acquired by Visma in 2020 but operates independently.

Company: Fiken AS, Oslo, Norway. Founded 2010. ~50K+ Norwegian SMB customers.

Core Features

Feature Details
Invoicing Professional invoices via EHF (Elektronisk HandelsFormat), email, or paper. Quotes. Payment reminders.
Expenses Electronic voucher storage, OCR receipt scanning
VAT Automated VAT calculations + direct electronic submission to Altinn
Banking Bank statement import; bank reconciliation (bank integration add-on)
Payroll Full payroll with payslips via email, A-melding reporting (add-on)
Reports Income statement (P&L), balance sheet, cash flow
Chart of Accounts Norwegian standard (NS 4102) pre-loaded
E-invoicing EHF format — Norway's national e-invoice standard
Time tracking Add-on per user
API access Available as paid add-on

Pricing (Updated Feb 2026)

Major change: Fiken moved from a two-tier model (Solo / Standard) to a single flat plan at NOK 209/month with modular add-ons. The old Solo plan at NOK 139 has been discontinued.

Plan Price Notes
Fiken NOK 209/month (~€18.50) All-inclusive base — unlimited invoices, multiple users, EHF
No binding contract — Cancel anytime
Free trial 30 days No credit card required

Add-ons (monthly):

Add-on Price
Bank integration NOK 59/month (~€5)
Project accounting NOK 59/month
KID number NOK 59/month
API access NOK 99/month (~€9)
Time tracking NOK 59/user/month
Travel expenses/receipts NOK 59/user/month
Payroll (1st employee) NOK 79/month
Additional employees NOK 39/employee/month

Annual services:

Service Price
Tax return filing (sole proprietor) NOK 1,290 one-time
Tax return filing (AS/corporation) NOK 1,490 one-time

API

Security

Aspect Details
2FA Available (not enforced by default)
Encryption TLS in transit, encrypted at rest
Hosting Norwegian data centers (Visma infrastructure)
Compliance GDPR compliant; Norwegian Datatilsynet oversight
Certifications ISO 27001 (Visma group)

Compliance Coverage

Strengths vs. Bilko

Weaknesses (Bilko Opportunities)

2.2 FreeAgent (UK)

Overview: UK-focused cloud accounting SaaS, strong accountant partnership model. Notable for free access via NatWest/RBS/Mettle banking partnership. Subsidiary of NatWest Group since 2018.

Company: FreeAgent Central Ltd, Edinburgh, UK. Founded 2007. Acquired by NatWest 2018.

Core Features

Feature Details
Invoicing Professional invoices, recurring billing, estimates
Expenses Receipt capture, mileage tracking, expense categories
VAT Making Tax Digital (MTD) compliant — direct HMRC filing
Banking Open Banking feeds (automatic bank import)
Payroll RTI-compliant payroll, pension auto-enrollment
Self Assessment Personal tax return filing (UK-only)
Time tracking Project time tracking linked to invoices
Reports P&L, balance sheet, tax timeline
Corporation Tax CT600 submission to HMRC

Pricing (Updated Feb 2026)

Plan Price Notes
Bank partnership (free) £0 Free while you have NatWest, RBS, Ulster Bank, or Mettle account with ≥1 transaction/month
Standard 50% off first 6 months (promotional), then full rate All features included
30-day free trial Available No card required
Smart Capture Unlimited add-on Extra charge Auto data extraction for receipts/bills (10+ files/month)

Note (Feb 2026): FreeAgent is currently running a 50% off for first 6 months promotional offer for non-bank customers. Full standard pricing not publicly listed; varies by plan tier. The Mettle (NatWest digital bank) partnership also provides free access.

API

Security

Aspect Details
2FA Available (optional) — TOTP-based
Encryption TLS in transit, AES-256 at rest
Hosting AWS UK region
Compliance GDPR, FCA regulated (as NatWest subsidiary)
Certifications SOC 2 (via NatWest infrastructure)

Compliance Coverage

Strengths vs. Bilko

Weaknesses (Bilko Opportunities)

2.3 Holded (Spain)

Overview: All-in-one ERP/accounting SaaS for Spanish and Latin American SMBs. Broader than pure accounting — includes CRM, inventory, HR, and project management. Rapidly expanding via API integrations.

Company: Holded, Barcelona, Spain. Founded 2016. Backed by Nauta Capital, Lakestar.

Core Features

Feature Details
Accounting Full double-entry accounting, chart of accounts, reconciliation
Invoicing Verifactu certified (Spain Tax Agency AEAT), e-invoicing
Expenses OCR receipt scanning, expense management
Inventory Real-time stock tracking, batch/serial numbers, POS
CRM Customer pipeline, deal tracking
HR Employee management, payroll (Spain)
Projects Project management, time tracking
Reports P&L, balance sheet, VAT reports, custom reports

Pricing (Updated Feb 2026)

Plan Price Notes
Basic ~€12/user/month Core accounting + invoicing (up to 3 users)
Standard ~€19/user/month + Order management, inventory
Advanced ~€39/user/month + HR, advanced CRM
Enterprise €99+ / custom Dedicated support, custom integrations
Free trial 14 days No card required

Note (Feb 2026): Holded pricing spans €0–€99 across 4 editions. Per-user model gets expensive for growing teams.

API

Security

Aspect Details
2FA Available
Encryption TLS 1.2+, AES-256 at rest
Hosting AWS EU (Ireland)
Compliance GDPR, LOPD (Spanish data protection)
Certifications ISO 27001 (pending confirmation)
Verifactu Certified by Spanish Tax Agency (AEAT) for e-invoicing compliance

Compliance Coverage

Strengths vs. Bilko

Weaknesses (Bilko Opportunities)

2.4 Wave (Canada/US)

Overview: Freemium accounting SaaS for micro-businesses and freelancers. Free core product funded by financial services add-ons (payments, payroll). GraphQL API. H&R Block acquired Wave in 2019.

Company: Wave Financial Inc., Toronto, Canada. Founded 2010. Acquired by H&R Block 2019.

Core Features

Feature Details
Invoicing Unlimited invoices (free), recurring billing, estimates
Expenses Receipt OCR (Pro only), expense tracking
Accounting Double-entry accounting, chart of accounts, journal entries
Banking Bank connection and auto-import (manual entry in Starter)
Reports P&L, balance sheet, cash flow, aged receivables
Payments Online payment processing (fee-based: 2.9% + $0.60)
Payroll Add-on service ($20–40/month, US/Canada only)
Bookkeeping Managed bookkeeping service (Wave Advisors)

Pricing (Updated Feb 2026)

Plan Price Notes
Starter Free Invoicing, expense tracking, reports (unlimited)
Pro $16–19/month or $170/year Automated bank import, receipt scanning, recurring invoices
Payments 2.9% + $0.60 per transaction Optional online payment processing
Payroll $20–40/month + $6/employee US/Canada only
Wave Advisors From $149/month Managed bookkeeping (human accountants)

Notable change (2024–2026): Wave removed transaction-level CSV export from free (Starter) accounts without public notice. Third-party OAuth now requires active Pro subscription. These changes are eroding Wave's free-software reputation.

API

Security

Aspect Details
2FA Available (SMS or authenticator app)
Encryption TLS in transit, encrypted at rest
Hosting Google Cloud (US)
Compliance GDPR (limited — US-centric); PCI-DSS for payment processing
Certifications PCI-DSS Level 1 (payment processing only)
Data residency US-based — compliance risk for EU/GDPR businesses

Compliance Coverage

Strengths vs. Bilko

Weaknesses (Bilko Opportunities)

2.5 Zoho Books (Global)

Overview: Part of the Zoho suite, Zoho Books is the most globally comprehensive accounting platform with 16+ country-specific editions. Deep API, multi-currency, global tax handling. Part of Zoho Corp (Indian conglomerate).

Company: Zoho Corporation, Chennai, India / Austin, US. Founded 1996. Private, profitable.

Core Features

Feature Details
Invoicing Smart invoicing, recurring billing, client portal, estimates
Expenses OCR scanning, expense reports, mileage tracking
Banking Bank feeds, auto-reconciliation, AI categorization
Inventory Real-time tracking, batch/serial numbers (Standard+ plans)
Projects Time tracking, project billing, billable expenses
Payroll Zoho Payroll add-on (select countries)
Reports Comprehensive: P&L, balance sheet, trial balance, aging, custom reports
Multi-currency 170+ currencies, real-time exchange rates
Tax GST (India), VAT (UK, UAE, Saudi, etc.), sales tax (US), 16+ countries

Pricing (Updated Feb 2026)

Plan Price (annual) Users Notes
Free $0 1 + 1 accountant Up to 1,000 invoices/year
Standard $15/org/month 3 Unlimited invoices; 5,000 expenses/year
Professional $40/org/month 5 + Inventory; 10,000 bills
Premium $60/org/month 10 + Advanced features; 25,000 bills
Elite $120/org/month 10 + Advanced inventory; 100,000 bills
Ultimate $240/org/month 15 All features
User add-on $2.50/user/month (annual) — Additional users beyond plan limit

Key change (2026): Standard dropped from $20 → $15/month. Professional dropped from $50 → $40. User add-ons now available at $2.50/user/month (annual) or $3/month.

API

Security

Aspect Details
2FA Available (TOTP, SMS)
Encryption TLS 1.2/1.3, AES-256 at rest
Hosting US (AWS), EU (AWS Frankfurt for EU users), India, Australia, Japan
Compliance GDPR, ISO 27001, SOC 2 Type II (Zoho Corp infrastructure)
Data residency EU data hosted in Frankfurt for GDPR compliance
Certifications ISO 27001, SOC 2 Type II

Compliance Coverage

Strengths vs. Bilko

Weaknesses (Bilko Opportunities)

2.6 FreshBooks (Canada)

Overview: Cloud accounting focused on service businesses, freelancers, and agencies. Best-in-class invoicing and time tracking. Strong on client experience. SOC 2 Type 1 certified.

Company: FreshBooks, Toronto, Canada. Founded 2003. Private equity backed (Oak Investment Partners).

Core Features

Feature Details
Invoicing Professional invoices, recurring billing, automatic payment reminders
Expenses Receipt scanning, expense categories, mileage tracking
Time tracking Built-in time tracking linked to projects and invoices
Client portal Clients view invoices, approve estimates, pay online
Projects Project management, team collaboration, profitability tracking
Reports P&L, expenses, tax summary, accounts aging
Payroll Gusto integration (US/Canada)
Proposals Business proposals with e-signature

Pricing (Updated Feb 2026)

Plan Price (monthly billing) Price (annual billing) Clients
Lite $19/month $17.10/month Up to 5 clients
Plus $43/month ~$38.70/month Up to 50 clients
Premium $60/month $54/month Unlimited clients
Select Custom Custom Dedicated support, custom domain
User add-on $11/user/month — Additional team members
Advanced Payments $20/month — Add-on
Payroll From $40 + $6/person/month — US/Canada
30-day free trial Available Full features —

Promotional note (Feb 2026): FreshBooks frequently offers 90% off for the first 4 months before reverting to full price.

API

Security

Aspect Details
2FA Available (email-based OTP, rolling out to all accounts)
Encryption TLS 1.2+, AES-256 at rest
Hosting AWS (Canada/US)
Compliance GDPR (limited — data may be in US), PCI-DSS for payments
Certifications SOC 2 Type 1 (achieved February 2023, assessed by A-LIGN)
Penetration testing Regular third-party pen tests

Compliance Coverage

Strengths vs. Bilko

Weaknesses (Bilko Opportunities)

2.7 Pancake (Self-hosted)

Overview: Self-hosted project management and invoicing platform for freelancers. One-time license model, no subscription. Not a compliance accounting tool.

Note: Pancake is not a direct accounting compliance competitor to Bilko. It serves a different use case (project/invoice management, self-hosted). Included for completeness of the freelancer market segment.

Company: Pancake App. Self-hosted. No country-specific entity.

Core Features

Feature Details
Invoicing Professional invoices, recurring billing
Time tracking Project-based billable hours
Project management Kanban, milestones, task management
Client portal Clients view projects, invoices, communicate
Expenses Basic expense tracking
Contracts Contract templates, e-signature
Payments PayPal, Stripe integration

Pricing (Updated Feb 2026)

License Price Notes
Pancake License ~$149–179 one-time 1 installation, lifetime updates
No subscription — Self-hosted, no recurring fees

Compliance Coverage

Relevance to Bilko

Bilko opportunity: Target Pancake users who are self-hosting for basic invoicing but need real accounting compliance (VAT filing, SEF integration). Data sovereignty messaging and local compliance are Bilko differentiators for this segment.

2.8 Minimax (Slovenia/Croatia/Serbia)

Overview: ⚠️ Highest-priority regional competitor. Minimax is the most popular cloud accounting software in Slovenia, with active subsidiaries in Croatia and Serbia. Parent company SAOP d.o.o. (acquired by Seyfor group). Built as SaaS from the ground up. Has implemented Fiskalizacija 2.0 for Croatia's January 2026 e-invoicing mandate. Has mobile apps (iOS/Android). This is the closest regional analogue to Bilko.

Company: SAOP d.o.o., Slovenia. Part of Seyfor Group (CZ). ~1,500+ employees across region. Active in SL/HR/RS.

Core Features

Feature Details
Invoicing Cloud invoicing, recurring billing, e-invoicing
Accounting Full double-entry accounting
VAT Slovenia/Croatia/Serbia VAT compliance
E-invoicing Fiskalizacija 2.0 (Croatia, Jan 2026), EDI via BizBox
Payroll Supported (Slovenia, Croatia, Serbia)
Banking Bank import, reconciliation
Reports Standard financial reports per country
Mobile app ✅ iOS (App Store) + Android (Google Play)
Multi-entity Supported
API / integrations EDI network via BizBox partner

Pricing

Note: Minimax does not publish pricing publicly on their website. A 30-day free trial is available. Pricing is subscription-based (SaaS). To get pricing, contact regional teams:

  • Slovenia: minimax.si
  • Croatia: minimax.hr
  • Serbia: minimax.rs (via partner network)

Based on market research, estimated monthly pricing is in the €10–30 range per organization depending on modules, but this is unverified — contact Minimax directly for confirmed pricing.

Compliance Coverage (Feb 2026)

Country Compliance
Slovenia ✅ Full VAT (FURS), e-invoicing, payroll
Croatia ✅ Fiskalizacija 2.0 (LIVE Jan 2026), VAT, PDV reports
Serbia ✅ Accounting, VAT (PDV); SEF integration status unverified
BiH ❌ Not documented

Strengths vs. Bilko

Weaknesses (Bilko Opportunities)

2.9 Pantheon — Datalab (Slovenia/ERP)

Overview: Enterprise ERP system from Datalab Tehnologije d.d. (Ljubljana, Slovenia). Primarily license-based on-premise + cloud hybrid. Used in accounting firms across Slovenia, Croatia, Serbia, and Bulgaria. Not a modern SaaS product — requires setup, licensing, and maintenance.

Company: Datalab Tehnologije d.d., Ljubljana, Slovenia. Founded 1990s. Available in SL/HR/RS/BG.

Core Features

Feature Details
Accounting Full ERP accounting, general ledger, AP/AR
Invoicing Receiving/issuing invoices, interwarehouse transfers
Banking Automated bank statement import and posting
Document archive Digital archive, document management
HR/Payroll Employee management and payroll
Manufacturing Production modules (ERP scope)
Reports Financial statements, VAT, custom
Compliance Country-specific editions for SL/HR/RS/BG

Pricing

License-based model: Pantheon uses perpetual license pricing with an annual maintenance fee of 22% of total active license value. Pricing not standardized — varies by modules, users, and country. Small Business edition available. Contact Datalab or regional partners for quotes.

Target Market

Mid-market companies and accounting firms (not micro-SMBs). Requires IT setup, partner deployment. High total cost of ownership compared to SaaS alternatives.

Strengths vs. Bilko

Weaknesses (Bilko Opportunities)

2.10 e-Racunovodstvo / e-racuni.com (Serbia)

Overview: Web-based ERP and invoicing platform for Serbian (and Slovenian) businesses. One of the few cloud accounting solutions with native Serbian compliance. Three subscription tiers including a free BASIC plan. Has Shopify app for Croatian fiscalized invoicing.

Company: e-racuni.com. Available for Serbia (srbija.e-racuni.com) and Slovenia (e-racuni.com).

Core Features

Feature Details
Invoicing Cloud invoicing, recurring billing
Payroll Included in ADVANCED+
VAT reporting Serbian VAT (PDV)
eTax integration Interface to Serbian Tax Administration (eTax portal)
General ledger ADVANCED+
Stock management ADVANCED+
POS/Retail Available as add-on
Production Available as add-on
Annual reporting PREMIUM — financial statements, tax returns
Assets PREMIUM

Pricing (Verified via official pricing page)

Plan Price Notes
BASIC Free Single user; invoicing, expenses, cash book, e-banking
ADVANCED From €15/month + Payroll, timesheet, VAT reporting, general ledger, stock
PREMIUM From €35/month + Financial reporting, assets, multi-company
POS (Retail) +€10/month Add-on to any plan
Production +€12/month Add-on to any plan
Phone support +€25–30/month Optional

Prices in EUR; payment in Serbian dinar at NBS middle exchange rate.

Compliance Coverage

Strengths vs. Bilko

Weaknesses (Bilko Opportunities)

3. Feature Comparison Matrix

Feature Fiken FreeAgent Holded Wave Zoho Books FreshBooks Minimax e-racuni Bilko (Target)
Invoicing ✅ ✅ ✅ ✅ ✅ ✅ ⭐ ✅ ✅ ✅
Recurring invoices ✅ ✅ ✅ ✅ (Pro) ✅ ✅ ✅ ✅ ✅
Expense tracking ✅ ✅ ✅ ✅ ✅ ✅ ✅ ✅ ✅
Receipt OCR ✅ ✅ (add-on) ✅ ✅ (Pro) ✅ ✅ ⚠️ ❌ ✅
Bank feeds ✅ (add-on) ✅ (Open Banking) ✅ ✅ (Pro) ✅ ✅ ✅ ✅ ✅
Bank reconciliation ✅ ✅ ✅ ✅ ✅ ✅ ✅ ✅ ✅
Double-entry accounting ✅ ✅ ✅ ✅ ✅ ✅ ✅ ✅ ✅
Chart of accounts ✅ (NS 4102) ✅ (UK) ✅ (Spain) ✅ (generic) ✅ (16 countries) ✅ (generic) ✅ (SL/HR/RS) ✅ (RS) ✅ (RS/BA/HR)
VAT / Tax reports ✅ (Altinn) ✅ (HMRC MTD) ✅ (IVA Spain) ⚠️ manual ✅ (16 countries) ⚠️ manual ✅ (SL/HR/RS) ✅ (RS) ✅ (SEF/UIO/HR)
E-invoicing ✅ (EHF Norway) ❌ ✅ (Verifactu ES) ❌ ❌ ❌ ✅ (HR Fisk 2.0) ⚠️ unverified ✅ (SEF/HR-FISK)
Payroll ✅ (add-on NO) ✅ (UK RTI) ✅ (Spain) ✅ (US/CA add-on) ⚠️ select countries ⚠️ (Gusto US/CA) ✅ (SL/HR/RS) ✅ (RS) 📋 Phase 2
Multi-currency ❌ ⚠️ basic ✅ ❌ ✅ (170 currencies) ⚠️ basic ⚠️ ❌ ✅ (RSD/BAM/EUR)
Time tracking ✅ (add-on) ✅ ✅ ❌ ✅ ✅ ⭐ ❌ ⚠️ basic ❌
Inventory ❌ ❌ ✅ ❌ ✅ (Standard+) ❌ ❌ ✅ (add-on) 📋 Phase 3
CRM ❌ ❌ ✅ ❌ ⚠️ (via Zoho CRM) ❌ ❌ ❌ ❌
Client portal ❌ ❌ ✅ ❌ ✅ ✅ ❌ ❌ 📋 Phase 2
P&L report ✅ ✅ ✅ ✅ ✅ ✅ ✅ ✅ ✅
Balance sheet ✅ ✅ ✅ ✅ ✅ ✅ ✅ ✅ ✅
Cash flow ✅ ✅ ✅ ✅ ✅ ✅ ✅ ✅ ✅
Mobile app ⚠️ PWA ✅ ✅ ✅ ✅ ✅ ✅ iOS+Android ❌ ✅ (Phase 2)
Accountant access ✅ ✅ ✅ ✅ ✅ ✅ ✅ ✅ ✅
RBAC (roles) ⚠️ basic ⚠️ basic ✅ ⚠️ basic ✅ ✅ ⚠️ basic ⚠️ basic ✅
Serbia (SEF) ❌ ❌ ❌ ❌ ❌ ❌ ⚠️ unverified ⚠️ unverified ✅ Phase 2
BiH (UIO) ❌ ❌ ❌ ❌ ❌ ❌ ❌ ❌ ✅ Phase 3
Croatia (HR-FISK 2.0) ❌ ❌ ❌ ❌ ❌ ❌ ✅ LIVE ❌ ✅ Phase 2
Balkan languages ❌ ❌ ❌ ❌ ❌ ❌ ✅ (SL/HR/RS) ✅ (RS) ✅ (SR/BS/HR)
Free plan ❌ ✅ (via bank) ❌ ✅ Starter ✅ ❌ ❌ ✅ BASIC ❌

Legend: ✅ Full support | ⚠️ Partial/limited/unverified | ❌ Not supported | 📋 Planned

4. Pricing Comparison Matrix

Product Entry Price (EUR/month) Model Free Plan/Trial Notes
Fiken ~€18.50 Flat per-org + add-ons 30-day free trial Single plan; modular add-ons
FreeAgent Free* Flat per-org 30-day free trial *Free with NatWest/RBS/Mettle; 50% off promo for paid
Holded ~€12/user Per-user 14-day free trial 4 tiers €0–€99; gets expensive
Wave Free Freemium + Pro $16-19/mo Core product free Eroding free tier (CSV paywalled)
Zoho Books Free Per-org 14-day trial on paid Standard now $15/mo; free 1K invoices
FreshBooks ~€17 (Lite) Per-org 30-day free trial Plus $43/mo monthly; client-count limits
Pancake ~€136 one-time One-time — Self-hosted, no compliance
Minimax Unverified (~€10–30 est.) Per-org SaaS 30-day free trial No public pricing; contact sales
Pantheon (Datalab) License + 22% annual maint. Perpetual license — ERP, not SMB-SaaS; high setup cost
e-racuni.com Free (BASIC) Freemium Free tier ADVANCED €15/mo; PREMIUM €35/mo
Bilko (target) ~€15–18/month Per-org 30-day free trial Flat pricing; compliance included

Pricing Insight for Bilko

5. API Pattern Analysis

Product API Style Auth Webhooks Rate Limits SDKs Maturity
Fiken REST v2 OAuth 2.0 + API key ✅ Not public Community Medium
FreeAgent REST v2 OAuth 2.0 ✅ Not public Community PHP/Node High
Holded REST API key ✅ Not public Community Medium
Wave GraphQL OAuth 2.0 (Pro required) ✅ 429 documented None official High
Zoho Books REST v3 OAuth 2.0 ✅ Per-plan limits Official (5 languages) Very High
FreshBooks REST OAuth 2.0 ✅ Not public None official High
Minimax EDI via BizBox — ❌ — None Low
e-racuni Limited API key ❌ — None Low
Pancake Limited REST API key ❌ — None Low

Key API Patterns for Bilko Design

  1. OAuth 2.0 is standard — all enterprise-grade competitors use it. Bilko's API must support OAuth 2.0 authorization code flow for third-party integrations.

  2. REST > GraphQL for accounting — while Wave uses GraphQL, REST is the dominant pattern in accounting APIs. Bilko should use REST with JSON. Consider GraphQL for a future v2 API.

  3. Webhooks are expected — invoice sent, payment received, expense approved are minimum webhook events. Important for accountant tools and ERP integrations.

  4. API key for simple integrations — in addition to OAuth, provide API key support for simple server-to-server integrations (e.g., WooCommerce → Bilko invoice creation).

  5. Wave's Pro-gate on API — requiring a paid plan for OAuth access is a monetization lever. Consider for Bilko: API access on all plans, but webhook events only on paid plans.

  6. Zoho's versioning model — v3 API with stable versioning and developer console is the gold standard. Bilko should version from day one (/api/v1/).

  7. Regional competitors have no real APIs — Minimax uses EDI/BizBox, e-racuni has minimal API. Bilko's modern REST API is a clear differentiator in the Balkan market.

Bilko API Target Design

Authentication: OAuth 2.0 (code flow) + API key
Style: REST + JSON
Versioning: /api/v1/
Webhooks: invoice.created, invoice.sent, invoice.paid, expense.approved, payment.received
Rate limits: 100 req/15min (general), 5 req/15min (auth)
Documentation: OpenAPI 3.0 spec + generated SDK
SDKs: JavaScript/TypeScript (Phase 2), Python (Phase 3)

6. Security Comparison

Product 2FA Encryption Certifications Data Residency GDPR
Fiken ✅ Optional TLS + AES-256 ISO 27001 (Visma) Norway ✅
FreeAgent ✅ Optional TLS + AES-256 SOC 2 (NatWest) UK (AWS) ✅
Holded ✅ Optional TLS + AES-256 ISO 27001 (pending) EU (AWS Ireland) ✅
Wave ✅ Optional TLS + AES-256 PCI-DSS Level 1 US (Google Cloud) ⚠️
Zoho Books ✅ Optional TLS + AES-256 ISO 27001 + SOC 2 Type II US/EU/India/AU ✅
FreshBooks ✅ Optional TLS + AES-256 SOC 2 Type 1 US/CA (AWS) ⚠️
Minimax ⚠️ unverified TLS (cloud) Unverified Slovenia/EU ⚠️
e-racuni ❌ TLS + backups None documented Serbia ⚠️
Pancake ❌ TLS (self) None Self-hosted N/A
Bilko (target) ✅ TOTP (enforce on owner) TLS 1.3 + AES-256 + AES-256-GCM (L4 fields) SOC 2 Type II (Phase 2) EU West (Railway) ✅

Security Observations

  1. 2FA is optional everywhere — no competitor enforces 2FA. Bilko can differentiate by requiring 2FA for org owners (compliance-first positioning).

  2. Field-level encryption is not mentioned by any competitor — Bilko's AES-256-GCM for tax IDs (PIB/JMBG/OIB/JIB) and IBAN is a genuine differentiator in the Balkan regulatory context.

  3. SOC 2 is the enterprise trust signal — FreshBooks got Type 1 in 2023; Zoho has Type II. Bilko should target SOC 2 Type 1 within 18 months of launch as an enterprise sales enabler.

  4. Wave's US data residency is a GDPR risk — EU users of Wave are technically at risk. Bilko's EU West (Railway Frankfurt/Amsterdam) hosting is a compliance advantage.

  5. Regional competitors (Minimax, e-racuni) have weak security posture — no 2FA enforcement, limited certifications. Bilko's security-first approach is a differentiator vs. regional alternatives.

7. Balkan Market Gap Analysis

Regulatory Status — February 2026 Update

Country Regulation Status (Feb 2026)
Croatia HR-FISK 2.0 (Fiskalizacija 2.0) 🟢 LIVE — mandatory for all VAT-registered B2B since Jan 1, 2026. HR-FISK format: UBL 2.1 + EN 16931.
Serbia SEF B2B e-invoicing 🟡 DELAYED — B2B mandate pushed to Jan 2028. Voluntary SEF from March 30, 2026. G2G/B2G already mandatory.
Serbia VAT Law Amendments 🔵 IN EFFECT — new requirements for retail + corporate card transactions from April 2026. Pre-filled VAT returns postponed to Jan 2027.
BiH Fiscalization / e-invoicing 🟡 ADVANCING — FBiH House of Peoples approved Fiscalization Bill (Dec 2025). Mandatory proposed from Jan 2026; full transition by Jan 2027. Law not yet enacted.

What Exists Today (Balkan SMB Accounting)

Solution Serbia BiH Croatia Quality Modern?
Minimax ✅ ❌ ✅ (Fisk 2.0 live) High Yes — SaaS
e-racuni.com ✅ ❌ ❌ Low No (legacy web)
Eurofaktura ✅ ❌ ✅ Medium No (legacy)
Pantheon (Datalab) ✅ ❌ ✅ Medium No (desktop/ERP)
Excel + manual SEF ✅ ✅ ✅ N/A —
Zoho Books (global) ⚠️ manual ⚠️ manual ⚠️ manual High Yes
Bilko (target) ✅ ✅ ✅ Target: highest Yes

Compliance Gaps in Global Players

Compliance Requirement Fiken FreeAgent Holded Wave Zoho Books FreshBooks Minimax Bilko
Croatia HR-FISK 2.0 (B2B mandatory Jan 2026) ❌ ❌ ❌ ❌ ❌ ❌ ✅ LIVE ✅ Phase 2
Croatia PDV 25%/13%/5% ❌ ❌ ❌ ❌ ⚠️ manual ❌ ✅ ✅
FINA certificate flow ❌ ❌ ❌ ❌ ❌ ❌ ✅ ✅ Phase 2
Serbia SEF e-invoicing (voluntary Mar 2026) ❌ ❌ ❌ ❌ ❌ ❌ ⚠️ ✅ Phase 2
Serbia PDV 20%/10% calculation ❌ ❌ ❌ ❌ ⚠️ manual ❌ ✅ ✅
Serbia APR financial reporting ❌ ❌ ❌ ❌ ❌ ❌ ⚠️ ✅ Phase 2
BiH Fiscalization (law advancing) ❌ ❌ ❌ ❌ ❌ ❌ ❌ ✅ Phase 3
BiH UIO VAT (17%) ❌ ❌ ❌ ❌ ⚠️ manual ❌ ❌ ✅
BiH FBiH/RS entity CoA ❌ ❌ ❌ ❌ ❌ ❌ ❌ ✅
Serbian/Bosnian/Croatian UI ❌ ❌ ❌ ❌ ❌ ❌ ✅ SL/HR/RS ✅

Conclusion: Minimax is now the primary regional competitor (Croatia live, Serbia active). Bilko must differentiate on: BiH coverage, modern developer API, transparent pricing, and open banking integration.

8. Key Takeaways for Bilko Positioning

8.1 Positioning Statement

"Bilko is the Fiken for the Balkans — simple, beautiful accounting built for Serbia, BiH, and Croatia compliance. The only cloud accounting platform covering all three markets with native e-invoicing, local languages, and transparent pricing."

vs. Minimax: "Unlike Minimax, Bilko covers Bosnia & Herzegovina, has transparent self-serve pricing, and is built API-first for the modern accountant ecosystem."

8.2 Differentiation Pillars

Pillar How Bilko Wins
Three-country coverage Only product covering RS + BA + HR with native compliance. Minimax covers RS + HR but not BiH.
Compliance-native No global player has SEF, HR-FISK, or BiH UIO. Minimax has HR/RS but not BiH. Bilko = complete Balkan stack.
Simple UX Fiken-inspired simplicity — built for SMB owners, not accountants. No accounting jargon.
Flat per-org pricing Transparent, self-serve. Minimax requires sales call. No per-user pricing (unlike Holded).
Modern tech stack React, TypeScript, REST API — vs. legacy desktop or ERP tools
Security-first Field-level encryption for tax IDs/IBAN; EU data residency; 2FA required for owners
Local language SR/BS/HR UI and support — global players are English-only; Minimax is Slovenian-first
Open Banking ready Modern bank feed via open banking — none of the regional competitors have this
Developer API REST API + webhooks — Minimax has EDI/BizBox only; no modern API in regional market

8.3 Pricing Recommendation

Based on updated competitor analysis:

8.4 Feature Priority (Based on Competitive Gaps)

Build first (MVP — what all global competitors lack):

  1. SEF integration (Serbia B2B e-invoicing — voluntary from Mar 2026, mandatory 2028)
  2. HR-FISK 2.0 integration (Croatia — ALREADY MANDATORY since Jan 2026 — urgent!)
  3. VAT calculations per country (RS 20%/10%, BA 17%, HR 25%/13%/5%)
  4. Country-specific Chart of Accounts (RS, BA FBiH/RS, HR)
  5. Serbian/Croatian/Bosnian UI

Build second (match competitors + differentiate from Minimax): 6. Mobile app (Minimax has iOS+Android; Bilko must match) 7. Receipt OCR scanning 8. Bank feed integration (Open Banking for Balkans — Minimax lacks this) 9. Modern REST API (no regional competitor has one) 10. Client portal

Build third (long-term differentiation): 11. Payroll (Serbia: PIO contributions; Croatia: OPZ-STAT) 12. Accountant partner portal (Fiken's biggest growth channel) 13. BiH Fiscalization (once law is enacted)

8.5 Go-to-Market Insights

Insight Source Implication for Bilko
Accountant partnerships drive SMB adoption Fiken, FreeAgent, Minimax Build accountant portal early; offer free access for accountants who onboard clients
Bank partnerships = free distribution FreeAgent + NatWest Target Serbian and Croatian neobanks (Revolut Business, neobanks entering RS/HR) for partnership
Croatia HR-FISK 2.0 is LIVE NOW Croatian Parliament, Jan 2026 Immediate urgency marketing — businesses in Croatia need compliance TODAY
Serbia SEF delay = early mover window Official SEF postponement Serbian voluntary SEF from March 2026 — target early adopters before 2028 mandate
BiH law advancing FBiH Parliament Dec 2025 First-mover in BiH — no one is building for BiH compliance yet
Free trial converts better than freemium for compliance products FreshBooks, Fiken, FreeAgent 30-day trial with onboarding call; no freemium complexity
Minimax opaque pricing = Bilko opportunity Minimax.hr, Minimax.rs Self-serve signup with transparent pricing vs. "contact us" = lower friction
API for integrators Wave, Zoho, FreshBooks Accountant practice management tools, e-commerce plugins (WooCommerce RS/HR)

8.6 Pricing / Feature Bundling Recommendation

Bilko Starter — €18/month
├── Unlimited invoices + expenses
├── VAT reports (manual export)
├── 2 users
├── 30-day trial

Bilko Growth — €29/month  (most popular)
├── Everything in Starter
├── SEF e-invoicing (Serbia) and/or HR-FISK 2.0 (Croatia)
├── Bank feeds + reconciliation
├── Unlimited users
├── API access

Bilko Pro — €49/month
├── Everything in Growth
├── All 3 countries (RS + BA + HR)
├── Priority support
├── Accountant portal
├── Custom reports
├── Audit trail access

Sources

International Competitors

Regional Competitors

Regulatory Sources

Last Updated: 2026-02-24 Version: 2.0 (major update — added Minimax, Pantheon, e-racuni; updated all pricing; added Feb 2026 regulatory updates) Next Review: Q3 2026 or when BiH Fiscalization Law is enacted Owner: Product Team

Revision #5
Created 2026-02-24 22:50:52 UTC by John
Updated 2026-05-31 20:03:53 UTC by John