Run the business.
Stay ahead of TRA.
One beautifully simple workspace for invoices, taxes, stock, payroll and projects—built around how Tanzanian businesses actually operate.
No card required · 14-day Business trial · Cancel anytime
Biashara OS / Home
Good morning, Amina
Here is what needs your attention today.
Open invoices
6
Sales this month
TZS 4.2M
Tax obligations
1 due
Low stock items
3
Sales overview
Issued invoices · last 6 months
Needs attention
3VAT return
Due in 4 days
Ceramic mugs
5 items left
INV-0241
7 days overdue
Mainland Tanzania VAT & TIN workflows
TZS-native invoicing and reporting
Works on phone and desktop
Multi-shop from day one
The problem
Compliance anxiety, spread across five tools
Deadlines live in someone's memory
VAT periods, TIN renewals, filing windows — tracked in a notebook or a WhatsApp reminder, if at all.
Records are scattered
Invoices in one app, stock in a notebook, client numbers in someone's phone. Nothing reconciles.
Multiple shops, one spreadsheet
A second location means a shared file two people edit — with no record of who moved what, or where a sale happened.
Compliance, front and center
From due date to done — with evidence attached
Every VAT period and filing window becomes a checklist item on your dashboard, with the supporting documents attached before the deadline — not after.
- Rates and deadlines never hardcoded in the UI
- Evidence attached per obligation
- Reminders before, not after, the due date
Tax & compliance
Mainland Tanzania · 2026
Open
2
Due soon
1
Filed
8
VAT return
March 2026 · due 20 Apr
PAYE
March 2026 · due 07 Apr
VAT return
February 2026
Evidence checklist
8 of 10 documents attached
Invoicing & quotes
Draft, send, and track proposals — convert accepted quotes into invoices with one click.
Stock & purchase orders
Branch-scoped inventory with partial and full receiving, no shared spreadsheet required.
Clients & suppliers
One directory for every contact, with TIN and VRN details ready for your documents.
Team & roles
Owner, accountant, cashier, branch manager — scoped access from day one.
How it works
Three steps to your first compliant invoice
Set up your business
Legal name, TIN, VRN, tax region, and your first shop — ready in a few minutes.
Run your day
Issue invoices, log payments, track stock, add clients — from your phone or a desktop.
Stay ahead of TRA
Obligations generate automatically from your profile, with reminders before each deadline.
Pricing
Priced for TZS. No USD surprises.
Every plan sees due dates and obligations — upgrades unlock scale, not compliance visibility.
Free
TSh 0 /mo
Essential invoicing, clients and a small product catalog for a new business.
- Invoices & quotes
- Client directory
- Product and stock basics
- 1 shop, 1 user
Starter
TSh 29,000 /mo
Everyday sales tools, exports and more room for a growing operator.
- Everything in Free
- PDF & spreadsheet exports
- Larger client and product limits
- 1 shop, 3 users
Business
TSh 69,000 /mo
Multi-shop operations with purchasing, payroll, projects and audit exports.
- Everything in Starter
- Purchasing and inventory
- People, payroll & projects
- 3 shops, 10 users
Pro
TSh 89,000 /mo
Unlimited scale, advisor access and priority support for complex businesses.
- Everything in Business
- Unlimited shops & users
- Advisor / accountant access
- Priority support
Clear thinking for growing businesses
Practical guidance on compliance, cash flow and running operations without spreadsheet chaos.
2 Aug 2026 · Biashara OS Team
Running stock across multiple shops without a spreadsheet graveyard
Why branch-scoped inventory beats a shared spreadsheet the moment you open a second location.
Read article →
28 Jul 2026 · Biashara OS Team
Invoice or quote? A quick decision guide for service businesses
Quotes and invoices look similar but do very different jobs. Here is how to tell which one your next document should be.
Read article →
21 Jul 2026 · Biashara OS Team
VAT deadlines every Tanzanian SMB should track
A plain-language walkthrough of Mainland VAT filing windows, and what actually happens if you miss one.
Read article →FAQ
Your questions, answered
Does this help with filing, or just tracking deadlines?
Biashara OS tells you what's due and helps you assemble the evidence — it doesn't file returns on your behalf. Think of it as the checklist and paper trail your accountant needs, always up to date.
Is this only for Mainland Tanzania?
The tax obligation engine currently covers Mainland VAT and TIN workflows. Zanzibar-specific rules are on the roadmap.
Can I run more than one shop?
Yes. Every plan supports at least one branch, and Business or Pro scale to multiple shops with branch-scoped stock, invoices, and dashboards.
What happens to my data if I cancel?
You can export your invoices, clients, and records at any time. We never hold your data hostage to force an upgrade.
How long is the free trial?
14 days on the Business plan, no card required to start.
Ready to know what TRA needs this week?
Start free, bring your first shop online in minutes, and never miss a filing window again.