Muafiyet was a tax exemption mechanism for Ottoman towns or villages; an individual decree of tax exemption was called a muafname.
After a muafname was issued to a town, the urban population would be exempted from some of the taxes on "raya", such as resm-i çift. Taxation in the Ottoman Empire was complex, including various routine and extraordinary taxes, and different rates for social groups; a muafname might apply to one or more of these taxes.
The Muafiyet system was a deliberate policy of the Sublime Porte, working to encourage the growth of urban populations from the 15th century onwards, although forgoing some tax revenue.
Tax exemption was prized by locals; so, the granting of a muafname was subject to "pull" as well as "push". Muafname might be requested by the local bey or kadı. Enforcement of the complex patchwork of taxes and exemptions could vary; in one case, taxes were collected from villages despite a muafname, and the local kadı wrote that subsequent legitimate taxes were held back to compensate for the wrongful taxation.
A "muafiyet emri", or tax exemption order, might even be given to an individual ship's captain.
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