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Microtec

Free business tools and calculators for Saudi Arabia

VAT and zakat, invoices and vouchers, pricing, stock and payroll. They run in your browser with no account.

E-invoicing

Integration waves on the Fatoora platform, invoice QR codes and the platform errors that block an invoice. (4 tools)

ZATCA Wave 25 Checker

See if wave 25 applies to you, the days left to 1 February 2027, and a phase 2 readiness plan as PDF

ZATCA Error Codes

Type a rejection code such as BR-KSA-40 or paste the response to see what it means, the field and the fix

ZATCA QR Code Generator

Enter five fields to get a phase 1 QR code, its Base64 text and TLV breakdown, as PNG or SVG

E-Invoice Reader

Paste a QR code text or open an XML file to see the invoice data and checks on VAT number, amounts and date

VAT, zakat and tax

VAT, zakat, withholding tax and real estate transaction tax, plus the late penalties before they land. (7 tools)

VAT Calculator

Add 15% VAT to a price, take it out of a VAT-inclusive amount, or total a multi-line invoice with discounts

VAT Penalty Calculator

Estimate VAT penalties for a late return or late payment, month by month, and see e-invoicing fines

VAT Number Checker

Check a VAT number's format (15 digits, starting and ending in 3) or read it from an invoice QR code

Zakat Calculator

Work out zakat on your savings against the nisab, on trade goods and inventory, or a company zakat base

Withholding Tax Calculator

Work out tax withheld on a payment to a non-resident by type, the net transfer and the date it is due

Invoices, vouchers and documents

Invoices, quotations, receipt and payment vouchers, credit notes and purchase orders to print or edit. (11 tools)

Invoice Generator

Build a tax, simplified or no-VAT invoice with a QR code and total in words, plus blank Word and Excel templates

Promissory note template

Promissory note with the amount in words and its seven statements checked, a blank form, and Nafith steps

Receipt Voucher

A numbered receipt voucher or cash receipt with the amount in words, printed on A4 or an 80mm roll

Quotation Generator

A quotation with lines, discount, VAT, validity and terms that becomes a sales order, plus blank forms

Amount in words

Any amount in words in English and Arabic, in riyals and halalas, with an Excel function for both

Payment Voucher

A cash or cheque payment voucher or payment order with the amount in words, cost centre and journal entry

Proforma Invoice Generator

A proforma for an advance or letter of credit that turns into an export commercial invoice with HS codes

Delivery Note Generator

A delivery note or GRN with ordered vs received quantities and the variance on every line before signing

Purchase Order Generator

A purchase requisition with an approval chain that becomes a supplier PO with discount, VAT and terms

Credit Note Generator

A credit or debit note tied to the original invoice and its reason, with VAT and the invoice before and after

Retail, pricing and sales

Discounts, margins, percentages, instalments and loyalty costs, in the numbers a cashier sees. (9 tools)

Discount Calculator

Price after discount, % off between two prices, stacked discounts and buy X get Y offers, with 15% VAT

Percentage Calculator

X% of a number, what percent one number is of another, % increase or decrease, with the formula worked out

Profit Margin Calculator

Margin and markup side by side, selling price from a target margin with VAT, and pricing for a whole item list

Payment Fees Calculator

The net that reaches your account after mada or gateway fees and their VAT, plus the monthly and yearly cost

Retail KPI Calculator

ATV, units per sale, conversion, sales per m², gross margin, GMROI and shrinkage, with two periods compared

Installment Calculator

The installment and a dated payment schedule, at a flat or declining rate with a down payment

CAC, LTV and NPS Calculator

What a new customer costs, what they bring back, the ratio between the two, and your NPS from a survey

Restaurants and cafés

Dish costing, delivery-app commission and closing the shift with a drawer count. (6 tools)

Food Cost Calculator

Plate cost from ingredients with waste, food cost %, and the menu price that hits your target

Restaurant KPI Calculator

Get prime cost, labor %, average check and seat turnover for a month, and compare two branches

Cash Drawer Reconciliation

Count the till by denomination, see if it is over or short, and print a Z report on receipt paper or PDF

QR Code Generator

A QR code for your menu link, Google reviews, Wi-Fi or WhatsApp, plus numbered table cards on A4

Inventory, distribution and field sales

Reorder points, stock turnover, barcodes, shipping labels, customs duty and sales-rep commission. (9 tools)

Barcode Generator

EAN-13 and UPC barcodes with the check digit worked out, SKU codes, and price labels ready to print

Customs Duty Calculator

Customs duty, import VAT and the landed cost per unit at your warehouse, for one item or a mixed shipment

Sales Commission Calculator

Commission for one rep or a whole team: flat rate, tiers or cash collected, always net of returns

Cost per visit calculator

What each rep visit costs, the smallest order that covers salary and van, and how many outlets a route needs

Credit limit calculator

Suggest a credit limit for each customer and see how many days receivables run late and how much cash they hold

Inventory Turnover Calculator

Inventory turnover, days on hand, sell-through, fill rate and weeks of supply on one board, with the formulas

Accounting and finance

Journal entries, depreciation, break-even, financial ratios and returns, with a glossary of terms. (9 tools)

Days Between Dates

Days and working days between two dates, invoice due dates and ageing, and Hijri-Gregorian conversion

Accounting Glossary

174 accounting and finance terms with definitions and SAR examples, instant search and an Excel download

Depreciation Calculator

Depreciation by four methods, with a part first year and a yearly and monthly schedule in Excel

Break Even Calculator

How many units cover your costs? Break-even in units and SAR, contribution margin and a break-even chart

ROI Calculator

Grow a sum with compound return and monthly deposits, or get a project's ROI, CAGR and payback period

Journal Entry Generator

66 ready journal entries with 15% VAT: pick a transaction, enter the amount, download the voucher

Saudi IBAN Checker

Validate a Saudi IBAN and see its bank, or screen a full payroll list and download the results

Financial Ratio Calculator

15 ratios from your two statements: liquidity, profitability, debt, turnover and EBITDA, each explained

HR and payroll

End of service, salary and GOSI, overtime, leave, Nitaqat and the salary certificate. (6 tools)

Salary and GOSI Calculator

See net pay after the GOSI deduction, the employer share and the full monthly cost, for Saudis and expats

End of Service Calculator

Work out the award on resignation or termination, period by period, plus the monthly provision for your team

Overtime Calculator

Work out overtime pay from basic and total salary on a workday, in Ramadan or on Eid, plus a monthly sheet

Annual Leave Calculator

See the annual leave balance left and its cash value, with a calendar that shows the return date

New

Salary Certificate

A salary letter, itemised salary certificate or bank transfer letter on your letterhead, ready to sign

New

Nitaqat Calculator

Estimate your Saudization rate with wage, part-time and flexible-work weights, and the hires you need

New

Starting a business and choosing systems

Commercial registration costs, ERP readiness and the return to expect from one. (4 tools)

ERP Readiness Assessment

Six or twelve questions give a score and a clear answer: accounting software, point of sale, or a full ERP

Commercial Registration Fees

CR and annual confirmation fees for an establishment or company, plus chamber, municipality and setup steps

ERP ROI Calculator

What manual work and stock variance cost you a year, and when a system pays back at the rate you set

ERP Cost Calculator

Put vendor quotes side by side and see which costs least over 3 or 5 years, with questions to ask before you sign

These free business tools cover the jobs that come up every week in a company in Saudi Arabia: working out 15% VAT and zakat, producing an invoice or receipt voucher to print, pricing a product for a target margin and calculating an end of service award. Search by the task or pick a category; each tool shows the result with the working in your own numbers. Every tool has its own page explaining the rule behind it and where that rule comes from.

In shortAll tools are free, need no account and work on phone or desktop. The full result is always on screen; the first file you download asks for your contact details once for the whole site.

Start from where you are

Pick the situation closest to yours and we take you to its tools.

Who these tools are for

We built them for the people who handle the day-to-day numbers in small and mid-sized companies in the Kingdom:

  • Finance managers and accountants, including those new to Saudi rules, who need to back VAT out of a gross figure, raise a payment voucher or book month-end depreciation.
  • Shop owners and cashier supervisors setting a promotion price and checking what is left after the discount and card fees.
  • Restaurant managers pricing a new dish or comparing a delivery-app order with a dine-in one.
  • Sales and warehouse managers working out rep commission, reorder points and shipping labels.
  • HR officers calculating net pay after GOSI, overtime and the end of service award under the Saudi Labor Law.

A few serve anyone: percentages, the gap between two dates in Hijri and Gregorian, and amounts written in words.

What the tools do

There are three kinds of tool on this page:

  • Calculators give you the figure with a sentence explaining it, and "How was this calculated?" opens the formula with your inputs. Many have a simple mode with a few fields and an advanced mode for special cases.
  • Document generators build the document as you type, then download it as a PDF to print, as Word or Excel to edit, or as an 80mm thermal receipt for a cashier printer.
  • Checkers and references such as the VAT number and IBAN format checks, the accounting glossary and the Fatoora error code guide. They check the format only; the final check is the authority's own service.

Your figures stay on your device

Calculations run inside your browser, so the amounts and names you type into a tool are not sent to Microtec. Some tools keep your recent calculations in your own browser so you can come back to them, and the share button puts your inputs in the link itself if you want to send a result to a colleague.

The first time you download or print a file we ask for your name, mobile number and email, once for the whole site; after that, downloads from any tool on the same device go straight through. Copying to the clipboard skips this step, and the on-screen result is never hidden.

Results are estimates; filings go to the authorities

The tools use the published rates and rules, and each page names the source of every regulatory figure it uses. They do not replace filing your return on the Zakat, Tax and Customs Authority (ZATCA) portal, the contribution records on the GOSI platform, or an employment contract where a specific clause applies. Use the figure to prepare and cross-check, then file what your books support.

An invoice from the invoice generator is a document for printing and reference, not an e-invoice under ZATCA's e-invoicing rules. A business registered for VAT issues its invoices from a compliant e-invoicing solution.

When the same calculation comes up every day

A calculator answers one question at a time. Once invoices run to a hundred a day, stock counts are monthly and payroll covers dozens of staff, the calculation needs a system that records it and ties it to inventory and the ledger. At Microtec we build those systems for businesses in Saudi Arabia, and our solutions are approved by ZATCA.

Questions about the free tools

Are these business tools really free?

Every tool on this page is free, with no subscription, no account and no limit on how often you use it. The full result shows on screen, and we only ask for something the first time you download a file: your name, mobile and email, once for the whole site.

Are the figures I type into a calculator saved?

The amounts and names you enter are not sent to Microtec, because the calculation runs in your browser. Recent calculations that some tools keep stay in your own browser, and a share link carries your inputs inside it, so anyone you give it to sees what you typed.

Can I rely on a calculator result for my VAT or zakat return?

Use it to prepare and cross-check; the return itself is filed on the ZATCA portal from your books. Each calculator names the source of the rate it uses, and if a rule changes in Saudi Arabia, the authority's updated text is what counts.

Is an invoice made here an e-invoice?

No. The invoice generator produces a printable document suited to businesses not registered for VAT, to learning and to reference. A VAT-registered business issues its invoices from an e-invoicing solution that meets ZATCA's rules.

Can these tools replace free accounting software?

No. Each tool handles one task and keeps no books from one day to the next. Accounting software records entries, links invoices to stock and customers and produces financial statements. The tools help with a quick calculation, an urgent document, or understanding a rule before you set it up in your system.

Why are some tools greyed out as "Coming soon"?

We release the tools one a day, starting with those tied to near deadlines such as Fatoora integration and the VAT return. A tool not yet released shows greyed out without a link, and the three most recent releases carry a "New" label.

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