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The modules run in one panel, on the same data. Describe what you do or what you need in your own words, and we'll suggest the modules that fit. Explore each one, pick your plan — once your account is approved, you're ready to go.
Each module handles one job; they all run on the same data.
The modules in your plan are enabled.With separate programs you type the same information again and again. Here one record flows to every module — the journey of a sale:
You approve the draft; it goes to GİB as an e-Invoice or e-Archive invoice.
To your customer by SMS and email, with a QR code.
With 3D Secure; you decide the installment options.
The invoice is marked "paid", the payment is posted as a bank entry and the customer's balance goes down on its own.
The accountant you invite sees it in their own portal, with a separate login.
You don't enter the same data twice — invoices, payments, cash and customer accounts draw on the same records.
Not by job title — by need. Pick a card and we'll show you the modules that fit.
Issue invoices, track payments, see your tax calendar on one screen.
Show matching modulesWarehouse, orders, purchasing and payroll in one system.
Show matching modulesCollect online from your dealers; let them order through their own portals.
Show matching modulesFrom business card to customer, from quote to order — nothing slips through.
Show matching modulesService requests are assigned to a technician; the job closes with photos and a service report.
Show matching modulesCurtain workshop, car rental, service network — the workflow comes ready.
Show matching modulesAre you an accountant?Follow your clients from one panel.
Go to the Accountant PortalEvery stakeholder has their own login and permissions, all connected to the same data. 10 stakeholder portals, one system.
10 stakeholder portals. One system.
Explore the portals in the simulatorDescribe your task; it weighs your data in context and prepares the suggestion that fits you.
Sample AI flow
Prepare a proposal presentation tailored to this company.
AI suggests. You stay in control.
A photo taken on your phone goes in; a listing-ready image comes out (runs on credits).
Render AI — See the moduleSuggests clauses with references to Turkish law; reviews the contract against 9 criteria.
Contracts — See the modulePrepares a proposal presentation for the company on the business card; flags facts to verify.
Proposal Presentation — See the moduleTranslates the text blocks in your quote into 7 languages in one click; the block layout stays intact.
Live Proforma — See the moduleNot a substitute for legal advice or an accountant's sign-off; the final word is always yours.
Start with the package that fits your business. iStartPay brings every module together on one intelligent platform.
One platform.All your data. In sync.
Compliant documents, secure payments and control over who sees what: a solid foundation for your business.
Documents on record. Payments you can trust. Access under control.
Find what you want to know before you start.
A business platform that brings daily work — bookkeeping, e-invoicing, collections, stock, sales and HR — into one panel. Of the 22 modules, the ones in your plan are enabled; they all run on the same data.
Explore the modulesIt doesn't stop at bookkeeping: quotes, orders, stock, service and payroll live in the same system. Your customers, dealers, suppliers and accountant connect through their own portals, so you don't enter the same data twice.
No. istartpay runs your daily operations and pre-accounting; filing tax returns and signing off official records remain your accountant's job. Your accountant sees your invoices, payroll and draft returns in their own portal and can download them as files.
Describe your work in your own words in the box at the top of the page and we'll show you the modules that fit, so you can choose your plan. Or explore every module one by one in the simulator.
Explore the modulesAn account with a private integrator is set up for your company, and each submission uses one credit. You prepare the invoice as a draft; it goes to GİB once you approve it.
Yes. You invite your accountant, who then sees your invoices, payroll and draft tax returns in their own portal — and can keep track of several companies from one account.
They pay by card with 3D Secure, through the link or QR code sent with the invoice. You set the installment options; when the payment arrives, the invoice and customer account update themselves.
Team members see only the modules you allow, and you can limit sales reps to their own customers. Card details are never stored in the system.
Yes — it is built for businesses in Turkey: e-invoices go to GİB, payroll follows Turkish legislation and the admin panel is in Turkish. You can also issue invoices and quotes in USD, EUR or GBP, and translate quote texts into 7 languages.
You pay a monthly or yearly plan fee; usage-based work such as e-invoice submissions and AI image generation runs on credits. Depending on the plan, extra users may cost extra; plans and trial periods are on the plans page.
See the plansYou can import your product and stock list from an Excel (.xlsx) file using a ready-made mapping template. For other records such as customer accounts and open balances, talk to our team and we'll agree on the best way to transfer them.
Yes. The panel runs in the browser, so it also opens on phones and tablets. There is no separate app-store app.
İMZAPOS Bilgi ve Yazılım Teknolojileri A.Ş. in Istanbul. For questions, reach our team via the phone number and email on the contact page.
Go to the contact pageOn the plans page, pick the plan that fits your business and register — no card details required. Once our team approves your account, you log in with a free trial. Each plan card shows its trial length and price.
See the plansNo question matches your search.
Pick your plan and register — no card required. Once your account is approved, you start with a free trial.
