If your business in Mauritius generates more than Rs 3 million in annual taxable turnover, you must register for Value Added Tax (VAT) with the Mauritius Revenue Authority (MRA). The threshold was reduced from Rs 6 million to Rs 3 million in 2025, catching many business owners off guard. VAT registration is not optional once you cross this threshold, and failing to register within 14 days results in penalties, backdated tax bills, and interest charges. Even if you are below the threshold, voluntary registration can benefit your business by allowing you to claim input VAT on purchases.
This guide covers the entire VAT registration process, from determining whether you need to register to filing your first return. We also cover the rates, exemptions, record-keeping requirements, and common mistakes that trip up new business owners. If you have not yet registered your business, our [business registration guide](/en/blog/how-to-register-business-mauritius) walks through the BRC process first.
When You Must Register for VAT
VAT registration becomes mandatory when your annual taxable turnover exceeds Rs 3 million over any consecutive 12-month period. The MRA uses a rolling look-back period to determine this: if your turnover exceeded Rs 3 million in any 12-month period, you have 14 days to register. If you expect to cross the threshold in the next 12 months based on current growth trends, you should also register proactively. The MRA takes a dim view of businesses that wait until they are well above the threshold before registering.
There are also specific rules for non-resident businesses providing taxable supplies in Mauritius. If you sell goods or services to Mauritian customers from abroad, you may need to register regardless of your turnover. The MRA evaluates these cases individually, so consult a tax professional if you are unsure about your obligations. Getting this wrong can result in unexpected tax bills and penalties.
- Mandatory registration: Annual taxable turnover exceeds Rs 3 million
- Voluntary registration: Available for businesses below the threshold
- Non-resident businesses: May need to register regardless of turnover
- Registration deadline: 14 days after crossing the threshold
- Late registration penalties: Backdated tax plus interest charges
Voluntary Registration Benefits
Even if your turnover is below Rs 3 million, voluntary VAT registration has real advantages. When you are registered, you can claim input VAT on your business purchases. If you buy equipment, pay for services, or purchase materials that include VAT, you can recover that tax through your returns. For businesses with high startup costs, this recovery provides meaningful cash flow relief during the early months when every rupee counts.
Voluntary registration also makes your business look more established to suppliers, customers, and potential partners. Some corporate clients prefer to work with VAT-registered suppliers because it simplifies their own accounting and allows them to claim input VAT on your invoices. If you are targeting larger customers, voluntary registration removes a barrier to doing business with them.
The downside of voluntary registration is the administrative burden. You must file VAT returns regularly, maintain proper records, and comply with all the same rules as mandatory registrants. For very small businesses, the compliance cost may outweigh the input VAT recovery. Our [tax season guide](/en/blog/tax-season-guide-self-employed-women-mauritius) helps you weigh these trade-offs based on your specific situation.
The Registration Process
VAT registration with the MRA is done online through the MRA e-Services portal. You will need your Business Registration Number (BRN), National ID, proof of address, and 3 recent business bank statements. The process typically takes 5 to 10 business days, after which you receive your VAT registration number (which is the same as your Tax Account Number). This number must appear on all your invoices, receipts, and business correspondence.
- Log in to the MRA e-Services portal with your BRN and password
- Complete the VAT registration form with business details and MSIC code
- Upload required documents: BRN certificate, ID, proof of address, 3 bank statements
- Specify your accounting period and expected turnover
- Submit the application and note your reference number
- Receive your VAT registration number within 5-10 business days
Once registered, you must display your VAT registration certificate at your business premises and charge VAT on all taxable supplies. Quarterly filers (annual turnover under Rs 3 million) must submit by the 20th of the month following the quarter. Monthly filers have until the 20th of the following month. Late filing attracts penalties of Rs 2,000 plus Rs 200 per day, so set reminders and file on time even if you have no VAT to pay.
It is worth noting that the MRA conducts random audits of VAT-registered businesses, particularly those with high input VAT claims relative to their turnover. If your input VAT consistently exceeds what the MRA expects for your type of business, you may be flagged for review. This does not necessarily mean you are doing anything wrong, but it does mean you need thorough documentation to support every claim you make.
VAT Rates and What They Apply To
Mauritius applies a standard VAT rate of 15% on most goods and services. Some items are zero-rated (taxed at 0%), and a small number are exempt from VAT entirely. Understanding which category your products or services fall into affects how you price your offerings and file your returns. Getting this wrong can lead to undercharging customers or overclaiming input VAT, both of which create problems with the MRA.
Zero-rated supplies include certain exports, medical supplies, and educational services. Exempt supplies include financial services, residential rent, and some healthcare services. The distinction matters because you can reclaim input VAT on zero-rated supplies but not on exempt supplies. If your business provides both taxable and exempt supplies, you need to apportion your input VAT accordingly. This apportionment can be complex, so keep detailed records of which expenses relate to which type of supply.
Record-Keeping Requirements
The MRA requires VAT-registered businesses to maintain specific records for a minimum of six years. These include sales invoices, purchase invoices, bank statements, cash books, and any documents related to input VAT claims. Poor record-keeping is one of the most common reasons businesses fail MRA audits, and the penalties for inadequate records can be significant.
- All sales invoices with VAT amounts clearly shown
- All purchase invoices and receipts for business expenses
- Bank statements for all business accounts
- Cash books and petty cash records
- Inventory records if you sell physical products
- Records of any input VAT claims and adjustments
Digital record-keeping is acceptable and recommended. Accounting software like Xero, QuickBooks, or even well-organized spreadsheets make it easier to track VAT, generate reports, and file returns accurately. The key is consistency: whatever system you choose, use it for every transaction from day one. Our [bank account guide](/en/blog/business-bank-account-mauritius) covers setting up the financial infrastructure you need for proper record-keeping.
If you discover an error in a previously filed return, do not wait for the MRA to find it. You can file an amended return within 30 days of the original filing date. After 30 days, corrections require a formal letter to the MRA explaining the error, providing supporting documentation, and requesting an amendment. Proactive correction demonstrates good faith and typically results in more favorable treatment than if the MRA discovers the error during an audit.
Filing VAT Returns
Your VAT return calculates the difference between output VAT (the VAT you collected on sales) and input VAT (the VAT you paid on purchases). If output VAT exceeds input VAT, you owe the difference to the MRA. If input VAT exceeds output VAT, you can claim a refund or carry the credit forward to the next period. Most small businesses end up paying a modest amount each period, but the exact figure depends on your margin and the mix of taxable and exempt supplies.
File your return through the MRA e-Services portal on the schedule assigned to your business. Even if you had no business activity during a period, you should still file a nil return to avoid penalties. The MRA does not automatically close your account for inactivity, which means penalties accumulate silently until you discover them months later.
Common Mistakes to Avoid
Based on our experience helping women entrepreneurs with VAT compliance, here are the errors that cause the most problems.
- Failing to register within 30 days of crossing the Rs 3 million threshold
- Not charging VAT on taxable supplies because you forgot you were registered
- Claiming input VAT on exempt supplies, which is not allowed
- Missing filing deadlines and accumulating penalties
- Not keeping adequate records for the required six-year period
- Failing to update the MRA when your business details change
The most expensive mistake is delayed registration. If the MRA discovers you should have been charging VAT but were not, you will owe the backdated tax plus interest and penalties. Register on time, charge VAT from the start, and keep your records organized. These basic steps prevent the vast majority of VAT problems. For help with your overall tax picture, see our [tax season guide](/en/blog/tax-season-guide-self-employed-women-mauritius).
How Fam Antreprenan Helps with VAT
At Fam Antreprenan, we handle VAT registration, return filing, and MRA correspondence for our clients. We set up your accounting systems to track VAT automatically, prepare your returns, and ensure you claim every input VAT deduction you are entitled to. Our goal is to make VAT compliance simple so you can focus on running your business rather than worrying about deadlines and forms.
Need help with VAT registration or compliance? [Contact us](/en/contact) for a free consultation and let us take this burden off your shoulders.