Before you start

A valid residence visa and Emirates ID
For a business: a trade licence, whether mainland through Sharjah Economic Development or through a free zone such as SPC, Shams, Hamriyah or SAIF Zone
For a Tax Residency Certificate: evidence for whichever of the three statutory routes you rely on
An understanding of your home country's rules, which do not stop applying because the UAE taxes nothing

Step-by-step

1
Confirm there is no personal income tax, and no local surcharge
Salaries are untaxed federally and Sharjah levies no personal income tax of its own. What Sharjah does levy is a municipality fee tied to your annual rent, collected alongside your tenancy attestation and utilities — which is a property charge rather than an income tax, but is a real recurring cost.
OnlineWho: You
2
Budget 5% VAT into everyday costs
VAT applies at 5% to most goods and services nationwide. Residential rent is generally outside it, but almost everything else you buy carries it. Prices are usually displayed inclusive.
OnlineWho: You
3
If you licence a business, work out where 9% corporate tax lands
Federal corporate tax applies at 9% on taxable profits above AED 375,000. Free-zone entities can qualify for a 0% rate on qualifying income but must meet substance and qualifying-activity conditions and still register and file. A cheap licence does not mean a tax-free one by default.
OnlineWho: You, with an accountant
4
Understand gratuity instead of a pension
Expatriate employees accrue an end-of-service gratuity based on basic salary and length of service under the federal labour law, paid when the employment ends. It is not a pension and it is not portable, so it should be treated as deferred pay in your own planning.
Via employerWho: Your employer
5
Apply for a Tax Residency Certificate through the correct route
Cabinet Decision 85 of 2022 gives three alternative bases: 183 days or more of physical presence in the UAE in a twelve-month period; or 90 days plus a valid residence permit and a permanent home, job or business here; or having your usual place of residence and centre of financial and personal interests in the UAE. You apply through the Federal Tax Authority's EmaraTax platform.
OnlineWho: You

Documents you’ll need

Emirates ID and residence permit
Passport with entry and exit records for a day-count claim
Attested tenancy contract or title deed and utility bills as evidence of a permanent home
Salary certificate or trade licence for the employment or business limb
Bank statements covering the relevant period

Things most newcomers don’t know

The Tax Residency Certificate has three routes, and most guides only mention one.

Everyone quotes 183 days. Cabinet Decision 85 of 2022 also allows 90 days in a twelve-month period combined with a valid residence permit and a permanent home, job or business in the UAE, and separately allows a claim based on having your usual place of residence and centre of financial and personal interests here. Someone who travels heavily for work may fail the day count and still qualify on another limb — which is exactly the person who needs the certificate most.

Source: Cabinet Decision 85 of 2022; Federal Tax Authority

Zero income tax in the UAE does not mean zero tax on you.

Your home country's rules keep running. US citizens file regardless of where they live. Many other countries tax you until you have genuinely severed residence, and some apply exit or deemed-disposal charges. The UAE's zero rate is a benefit you have to secure by leaving the other system properly, not one that arrives with your Emirates ID.

Source: Federal Tax Authority; home-country residence rules

A cheap Sharjah free-zone licence is a corporate tax question, not just a cost saving.

SPC Free Zone, Shams and the others are markedly cheaper than Dubai's zones and attract freelancers accordingly. But the 9% corporate tax regime applies nationwide above AED 375,000 of taxable profit, and a free-zone entity only gets the 0% qualifying-income rate if it meets substance and activity conditions — and must register and file either way. Budget for an accountant when you budget for the licence.

Source: Federal Tax Authority — corporate tax; UAE free zone qualifying income rules

Gratuity is deferred pay, not a pension, and it is lost easily.

The end-of-service gratuity accrues on basic salary, not total package, and its calculation depends on length of service. It is paid when employment ends and does not follow you between employers. Because it is tied to basic rather than allowances, a package that looks generous can accrue very little — worth checking the basic-to-allowance split when you negotiate.

Source: UAE Federal Labour Law — end-of-service benefits

Common mistakes to avoid

Assuming zero UAE income tax means no filing obligations at home. It does not.
Believing the Tax Residency Certificate requires 183 days when two other statutory routes exist.
Taking a cheap free-zone licence without checking whether your income is qualifying income for the 0% corporate tax rate.
Overlooking the Sharjah Municipality fee on your annual rent when budgeting your housing cost.
Negotiating a package with a low basic salary and high allowances, which quietly shrinks your gratuity.

Some of this may be out of date. Spotted something inaccurate? Help us keep it right for the next newcomer.