Payments & billing buyer's guide
Written by the Happy Valley editors, reviewed by Mustafa Gezer. Updated October 20, 2026.
What is Payments & billing software?
Payments and billing software lets a business accept money online and manage what customers owe: card processing, checkout pages, subscriptions, invoices, taxes, refunds and payouts. It ranges from payment gateways such as Stripe, Adyen and iyzico to subscription billing systems such as Chargebee and Recurly and merchant-of-record services such as Paddle and Lemon Squeezy.
The problems it solves are getting paid reliably in many currencies, retrying failed renewals, handling sales tax and VAT, and keeping revenue records accurate for accounting. A merchant of record goes further and becomes the legal seller, taking on tax collection and compliance for you.
Buyers include SaaS companies, e-commerce stores, creators selling digital products and marketplaces. It differs from accounting software, which records transactions after the fact, and from banking tools such as Mercury, which hold the money once it is paid out.
Key features to look for
- Supported countries and payouts
- First confirm the provider will onboard a company in your country and pay out to your bank. Stripe, for example, does not onboard companies registered in Turkey.
- Local payment methods
- Conversion depends on offering what buyers use: cards with installments in Turkey, iDEAL in the Netherlands, wallets like PayPal, Apple Pay and Google Pay elsewhere.
- Subscription and dunning logic
- Trials, proration, upgrades, smart retries and failed-payment emails recover revenue that would otherwise churn. Chargebee and Recurly specialize in this.
- Tax handling
- Selling software abroad means VAT, GST and US sales tax. A merchant of record like Paddle or Lemon Squeezy handles it; with a gateway you need a separate tax tool or process.
- Invoicing and e-invoice compliance
- Check that invoices meet local rules. In Turkey this means e-Fatura or e-Arşiv through an integrator connected to your billing flow.
- Fraud and 3D Secure
- Built-in fraud scoring and 3D Secure reduce chargebacks. Strong customer authentication is mandatory in Europe and very common in Turkey.
- Developer API and webhooks
- Clean APIs, test mode and reliable webhooks decide how fast you can launch and how safely you can sync payments with your product.
How to choose Payments & billing software
- 1
Start from where you are registered
List providers that onboard companies in your country and pay out to your bank. This removes most options immediately.
- 2
Decide gateway or merchant of record
A gateway gives lower fees and control but leaves tax and compliance to you. A merchant of record costs more per transaction but handles global tax and invoicing.
- 3
Match payment methods to customers
List where your buyers are and which methods they expect, including installments, local wallets and bank transfers.
- 4
Check subscription needs
If you sell recurring plans, test trials, upgrades, usage billing and dunning before signing, or add a billing layer like Chargebee or Recurly.
- 5
Compare total cost
Add percentage fees, fixed fees, currency conversion, chargeback fees, payout fees and monthly minimums for your real transaction mix.
- 6
Plan for card data portability
Ask whether saved cards can be migrated to another provider, so switching later does not force customers to re-enter payment details.
Payments & billing pricing
- 28%
- offer a free plan, free tier or open-source edition
- $49
- median starting price per month
- $20
- lowest paid starting price (Polar)
Payment providers usually charge a percentage plus a fixed fee per successful transaction, with extra costs for international cards, currency conversion, chargebacks and instant payouts. Merchant-of-record services such as Paddle and Lemon Squeezy charge a higher all-in percentage because they also cover tax and compliance. Subscription billing platforms such as Chargebee and Recurly add a monthly platform fee or a share of billed revenue on top of your gateway.
Turkish providers such as iyzico, PayTR and Param price per transaction with separate rates for single payments and installments, and settlement timing affects the rate. Large merchants can negotiate custom pricing, and orchestration layers like Craftgate add their own fee in exchange for routing across banks.
Based on 18 tools in this category with prices checked on vendor pages.
Best Payments & billing tools by need
- Best overallStripePayments infrastructure for the internet
- Best free optionGumroadSell digital products with zero monthly fee
- Best for small businessesiyzicoPayment gateway for Turkey
- Best for enterprisesChargebeeSubscription billing and revenue management
- Best for freelancersLemon SqueezyMerchant of record for digital products
- Best from TurkeyPayTRTurkish payment service provider
Recommendations by team type
- Creators and solo founders
- Gumroad, Lemon Squeezy or Polar let you sell digital products and subscriptions quickly with tax handled. Turkish sellers with social media audiences can use Shopier.
- SaaS startups selling globally
- Paddle or Lemon Squeezy as merchant of record remove VAT and sales tax work; companies with a US or EU entity can use Stripe directly and later add Chargebee for complex billing.
- Businesses selling in Turkey
- Use a licensed local provider such as iyzico, PayTR, Param or Sipay for cards and installments, and consider Craftgate or Lidio to route across several virtual POS accounts.
- Enterprises and platforms
- Adyen suits high-volume, multi-country businesses that need one contract, and Recurly or Chargebee handle complex subscription revenue at scale.
Payments & billing trends in 2026
Merchant-of-record models went mainstream for software sellers: Stripe bought Lemon Squeezy in 2024, Gumroad began acting as merchant of record for its sellers in 2025, and Polar positioned itself as an open-source MoR for developers. Usage-based and AI credit billing pushed billing tools to support metered and hybrid plans.
Stablecoin payments and agentic commerce also moved forward, with Stripe completing its acquisition of Bridge and launching agent payment tools with OpenAI in 2025. In Turkey, payment orchestration (Craftgate, Lidio) and instant transfers via FAST grew as merchants spread volume across banks.
Common mistakes to avoid
- Building the product around a provider that will not onboard your company or pay out in your country.
- Ignoring VAT and sales tax on international sales until a tax authority or accountant raises it.
- Comparing only headline percentages instead of total cost including FX, chargebacks and payout fees.
- Launching subscriptions without dunning, so failed renewals quietly become churn.
- Storing saved cards with a provider that will not export them, which makes switching painful.
Payments & billing in Turkey
Stripe does not onboard Turkish companies, so local businesses use licensed providers such as iyzico, PayTR, Param, Sipay or Lidio, often with Craftgate for orchestration. Installments are expected for many purchases. Every sale must be invoiced, and most online sellers issue e-Fatura or e-Arşiv invoices, so connect billing to your e-invoice integrator. Turkish SaaS founders selling abroad often use Paddle or Lemon Squeezy, or open a US company to use Stripe.
Payments & billing FAQ
- What is the best Payments & billing software?
- Based on community votes and market presence, the leading Payments & billing tools right now are Stripe, Gumroad, iyzico.
- Are there free Payments & billing tools?
- Yes. 2 tools in this category are free or open source, including Gumroad, PayPal.
- What is the cheapest paid Payments & billing tool?
- Polar has the lowest listed starting price at $20.00 per month.
- Can I use Stripe in Turkey?
- Not with a Turkish company: Stripe does not onboard businesses registered in Turkey. Turkish sellers use local providers such as iyzico, PayTR or Param, use a merchant of record like Paddle or Lemon Squeezy for global sales, or set up a company in a supported country.
- What is a merchant of record?
- A merchant of record is the legal seller of your product: it charges the customer, collects and remits VAT and sales tax, issues invoices and handles chargebacks. Paddle, Lemon Squeezy and Polar work this way, which suits small software teams selling worldwide.
- Paddle vs Stripe: which is better for SaaS?
- Stripe has lower base fees and more flexibility, but you handle tax registration and compliance yourself and need a supported company. Paddle charges more per sale but takes on global tax and invoicing, which saves work for small teams.
- What is the best payment gateway in Turkey?
- iyzico is the most widely known and easiest to start with; PayTR and Param are popular with SMEs, and Sipay adds wallet features. Compare commission and settlement terms for installments, and consider Craftgate or Lidio if you want to route across several banks.
- Do I need a subscription billing tool if I already have a gateway?
- Only if your billing is complex. A gateway like Stripe handles simple plans, but Chargebee or Recurly add proration, usage billing, revenue reports and dunning across gateways, which matters as plans and volume grow.
- How much do payment providers charge?
- Most charge a percentage plus a fixed fee per transaction, with extra costs for international cards, currency conversion, installments and chargebacks. Merchant-of-record services charge a higher combined rate because tax handling is included. Check live fees on each provider's page.