CK3 Tributary Guide: How Tributaries Work and How to Get One

Tributaries sit in an unusual spot in Crusader Kings III’s subject system — more independent than a vassal, more bound than a rival, and central to All Under Heaven’s Chinese hegemony gameplay. This guide covers what a tributary actually is, how to acquire one, how the contract works, and the China-specific Pay Tribute system.

What a tributary is

Crusader Kings III has three subject types: vassals, tributaries, and lessees. A tributary is a ruler who pays tribute to a more powerful ruler — their suzerain — in exchange for a truce, without surrendering their sovereignty the way a vassal does. Tributaries keep their own realm, their own laws, and can even hold their own subjects — tributaries may have subjects of their own, though vassals cannot have tributaries beneath them. Tributary borders are visible on the map, marking them as a distinct diplomatic category from vassalized territory.

The relationship is looser than vassalage by design: a tributary does not join their suzerain’s wars, does not owe levies, and only owes the specific tribute set in their contract.

How to take a tributary

Access to tributaries depends on government. Rulers with Nomadic, Celestial, or Mandala government can take tributaries at any time and can directly ask neighbouring rulers to become tributaries. Every other government needs authority law raised to level 2 first, and can only gain tributaries through war — there is no peaceful offer option for feudal, clan, or administrative rulers reaching down to a weaker neighbour.

The other direction always works: an independent ruler can offer to become a tributary of any suzerain capable of holding one, at any time, without a war. This is a common move for a weak realm facing a much stronger neighbour — better a truce and a tribute bill than an invasion.

Becoming a tributary creates a truce. Once that truce expires, the tributary can break away and become independent again, at a cost of 75 prestige and 100 opinion with their former suzerain — a real but not prohibitive price for a ruler who has grown strong enough to no longer need the arrangement.

Turning a tributary into a vassal (or vice versa)

This is the asymmetry worth memorising: a vassal can be turned into a tributary at any point by their liege, unilaterally — but turning a tributary into a vassal requires the tributary to agree. You cannot simply upgrade a tributary to a vassal by decree. If you want a tributary’s land under direct vassalage instead, your options are diplomacy — making the arrangement attractive enough that they consent — or war, fighting a subjugation-type casus belli rather than relying on the tribute relationship to escalate on its own.

One more consequence to plan around: if a ruler is vassalized, all of their own tributaries immediately become independent. Conquering a hegemon’s core territory does not inherit their tributary network — those tributaries scatter the moment the vassalizing blow lands.

The tributary contract

Every tributary except the Herder type has a contract with their suzerain, changeable only once per character, which sets their tribute obligations and any special rights. What tribute options are available depends on tributary type — the game defines several (Hegemonic, Subjugated, Settled, Nomadic Herd, Mandala, Celestial, Wanua, and more), each with its own tribute resource (Taxes, Prestige, Levies, Herd, or Piety) and its own truce duration, ranging from 5 to 25 years depending on type.

Herder tributaries are the exception: they have no contract at all, and instead automatically give 20% of their Herd to their suzerain every period.

Tax reduction rules mirror vassal contracts in spirit: a tributary owes less if their suzerain does not hold the higher-tier titles their land is de jure part of, on the same sliding scale that applies to vassal tithes.

Pay Tribute and Chinese hegemonies (All Under Heaven)

The All Under Heaven expansion adds a direct Pay Tribute decision, letting a tributary travel to their suzerain’s capital to deliver tribute in person rather than waiting on the passive contract flow. Independent rulers near a Hegemony can only become that hegemony’s tributary by using Pay Tribute first — there is no other entry point. Tribute options include Gold, Treasury, Herd, an artifact, and even a concubine or eunuch courtier under the right cultural traditions, and successfully delivering tribute yields rewards: Legitimacy, a random-quality artifact, a temporary capital development bonus, or an innovation your suzerain’s culture already knows.

Hegemony tributaries track a special resource — Subject Standing, called Imperial Grace if the suzerain is China — running from 0 to 100. Unlike standard contracts, hegemony tributary contracts can be renegotiated every 5 years rather than once per character, provided Subject Standing is at least 20. Paying tribute successfully raises Standing by 20–30 (or 5–15 on a failed skill challenge); it also decays by 1 per year on its own, faster during certain phases of China’s Dynastic Cycle. Tributaries of China specifically can be offered Seals of Investiture artifacts once their Imperial Grace clears a rank-dependent threshold — 70 for a Count, 50 for a Duke, lower again for higher ranks.

A tributary strategy

If you are the stronger power, taking tributaries lets you extract value from neighbours too costly to conquer outright — useful when your domain limit or vassal limit is already stretched. If you want that land under direct control eventually, remember it takes either their consent or a real war; do not expect a tributary relationship to soften into vassalage on its own. If you are the weaker power, offering tributary status pre-empts a war you would lose, buying a truce at the price of a manageable tribute. And if you are playing in or near China with All Under Heaven, actively managing Subject Standing through Pay Tribute is the difference between a stable hegemony and one perpetually one bad year from a tributary revolt.

Frequently asked questions

How do I make a ruler my tributary?

If your government allows it (Nomadic, Celestial, Mandala) you can ask directly. Otherwise, raise authority law to level 2 and take a tributary through war. Independent rulers can also offer to become your tributary at any time if you are capable of holding one.

How do I turn my tributary into a vassal?

They must agree — you cannot force it unilaterally the way you can demote a vassal to a tributary. Use diplomacy to make the arrangement appealing, or fight a subjugation-type war instead.

What happens to a tributary’s own tributaries if I conquer them?

They become independent immediately. Vassalizing a ruler releases all of their own tributaries rather than passing them to you.

What is Subject Standing / Imperial Grace?

A 0–100 resource tracked by hegemony tributaries (called Imperial Grace under a Chinese suzerain) that governs how often their contract can be renegotiated and unlocks rewards like Seals of Investiture. It rises when tribute is paid successfully and decays annually.