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Buying a rental property as a couple in Germany: ownership, debt and changing plans

Buying a rental property as a couple in Germany: ownership shares, joint mortgage liability, one-income checks, separation, death and what to agree first.

Buying a rental property as a couple in Germany: ownership, debt and changing plans
01

Overview

Buying investment property as a couple in Germany means answering two easily confused questions. Who owns the apartment is settled by the shares entered in the land register (Grundbuch). Who owes the bank is settled by the loan contract, and joint borrowers are usually each liable for the whole loan. A 70/30 ownership split does not create a 70/30 debt.

Settle both in writing before the notary appointment, together with what happens if you separate, or if one of you dies or moves away. This guide applies whether or not you are married; where the law treats spouses differently, it says so.

02

Start with shared goals

Agree what the apartment is for before agreeing a price. Is it a pension asset for 15 years, or savings one of you may need back in five? Who deals with the tenant and the tax return? What if one of you wants to sell and the other does not? The legal documents are easier to draft when they record decisions already made.

03

Deposits and unequal property ownership shares

Most couples buy as co-owners in fractional shares (Bruchteilseigentum). Each owns a share of the whole apartment, such as one half, and the shares are entered in the land register (§§ 741, 1008 BGB; § 47(1) GBO). If nothing else is specified, the law presumes equal shares (§ 742 BGB).

Unequal property ownership shares are an option where one partner brings more money. The registered shares decide ownership, whatever each of you paid (notar.de). If you register 50/50 although one of you contributed more, the difference is either a written loan between you or potentially a gift. Between unmarried partners, gift tax (Schenkungsteuer) can apply above a €20,000 allowance, counted over ten years (§§ 7, 14, 16 ErbStG; Landesnotarkammer Bayern).

Some notaries suggest a civil-law partnership (Gesellschaft bürgerlichen Rechts, GbR) instead (notar.de). Since 1 January 2024, a GbR can enter the land register only once registered in the companies register (§ 47(2) GBO; § 707a BGB). Ask the notary whether that suits one apartment.

04

Joint mortgage on a rental property in Germany: each of you owes the whole loan

When you both sign the loan contract, you normally become joint and several debtors (Gesamtschuldner). The bank may demand the full amount, or any part, from either of you until the loan is repaid (§ 421 BGB). The lender also assesses both of you, including any residence-permit questions (mixed-status applicants).

Between yourselves, the starting point is equal shares of the debt unless agreed otherwise (§ 426 BGB). A partner who pays more can claim compensation, but only what the other can pay.

Neither of you can simply leave the loan: releasing a borrower needs the bank's approval (§ 415 BGB), and the bank will check that the other can carry it alone.

05

Illustrative example: unequal contributions, one loan

Illustrative example. Fictional figures, not an offer or advice. Inputs: Alex and Sam, unmarried, buy a €250,000 apartment in Berlin. Purchase costs are €28,925: transfer tax (Grunderwerbsteuer) at 6.0 per cent (€15,000), notary and land registry at an assumed 2.0 per cent (€5,000) and a buyer's commission at an assumed 3.57 per cent (€8,925), as in our guide to how much money you need. Total cost: €278,925. Alex contributes €42,000 and Sam €18,000, each after keeping their own reserves. They borrow €218,925 jointly and plan to share the instalments equally.

Ownership optionAlex / Sam in the land registerWhat the split reflectsEach person's liability to the bank
1. Equal shares50% / 50%Neither contribution; Alex has funded €12,000 of Sam's half, which needs a written loan or may be a gift€218,925
2. Shares follow equity70% / 30%€42,000 and €18,000 of equity only, although the jointly repaid loan pays for most of the apartment€218,925
3. Equity plus half the loan each54.3% / 45.7%€151,462.50 and €127,462.50 of the €278,925 total, while instalments really are shared equally€218,925

The last column never changes. If Sam stopped paying, the bank could claim every instalment from Alex, whatever the land register says. Option 2 looks fairer than it is, because the loan funds most of the purchase; option 3 holds only while the plan does. Whichever you choose, write down what each of you paid and how you share instalments and costs.

06

Property investment on one income: test it before you buy

A joint loan is usually assessed on two incomes. Run your own budget with each salary removed in turn, including the larger one: parental leave, a career break or a job loss can leave one income paying for two people and an apartment. Our stress-test guide shows how long reserves last.

Alpha Minoris's Buyer's Agent service starts with that conversation, held with both of you: each person's contribution, the reserves you keep and whether the plan works on one income. Once you are ready, it coordinates sourcing, viewings, documents, the financing step and the notary appointment in Berlin, Dresden or Leipzig. How you hold title belongs with the notary and your own advisers.

07

Who decides: tenants, repairs and spending

Co-owners manage the property together (§ 744(1) BGB). For ordinary management, such as choosing a tenant, a majority decides, calculated by size of share (§ 745(1) BGB). At 70/30, the larger owner can outvote the other; at 50/50, neither can. Either may take measures needed to preserve the property alone (§ 744(2) BGB). Rent, costs and charges are shared by share size unless you agree otherwise (§§ 743, 748 BGB). Agree a spending limit each can approve alone.

08

If you separate

Each co-owner can demand dissolution of the co-ownership at any time (§ 749(1) BGB). An apartment cannot be divided physically, so without agreement it is sold by court-ordered partition auction (Teilungsversteigerung) and the proceeds divided (§ 753 BGB; § 180 ZVG).

The better routes are selling together or a buy-out, which needs a notarised transfer of the share, the bank's agreement to release the departing partner and a remaining owner who can finance the apartment alone. Transfer tax applies to the share bought unless you are spouses or registered partners, or former ones settling property after divorce or dissolution (§ 3 nos. 4, 5 and 5a GrEStG). A sale within ten years of purchase can also be taxable for the partner who sells (§ 23 EStG).

09

If one of you dies

Unmarried partners have no statutory right to inherit from each other (notar.de; §§ 1924, 1931 BGB). Without a will, the share passes to the deceased's heirs, who become co-owners and can demand a sale (§ 1922 BGB; § 749 BGB). The survivor still owes the whole loan. Each of you needs a will or a notarised inheritance contract (Erbvertrag) (§ 2276 BGB).

A spouse or registered partner has a €500,000 inheritance tax allowance; an unmarried partner falls into tax class III with €20,000 (§§ 15, 16 ErbStG), where rates start at 30 per cent (§ 19 ErbStG). Both allowances assume unlimited German tax liability.

10

What marriage changes, and what it does not

Marriage does not merge assets. Without a marriage contract, spouses live in the community of accrued gains (Zugewinngemeinschaft): each keeps their own property, and the gain in wealth during the marriage is equalised when it ends (§ 1363 BGB). A marriage contract (Ehevertrag) can change this and must be signed before a notary with both present (§§ 1408, 1410 BGB).

Spouses and registered partners can choose joint assessment for income tax, which adds their incomes together (§§ 26, 26b EStG; § 2(8) EStG). Unmarried partners are assessed separately. Shared rental income is generally determined in a separate declaration (Feststellungserklärung) unless the case is of minor importance (§ 180(1) and (3) AO), with each share then reported on Anlage V-Sonstige (ELSTER). Ask a tax adviser (Steuerberater) how this applies to you.

Marriage does not change the loan: spouses who both sign are each liable in full.

11

If one of you moves abroad

Our guide to owning a rental property after moving abroad covers the loan, tax and sale questions. For an apartment in Berlin, Dresden or Leipzig, Alpha Minoris's Vermieter-Autopilot can manage the rental on your behalf: finding tenants, rental contracting and coordinating repairs. Agree in writing who is the point of contact and which spending needs both owners' approval. You both remain the landlords.

12

Buying investment property as a couple in Germany: what to settle before signing

  • Ownership shares, and why you chose them.
  • Contributions and repayments: what each paid and how instalments, costs and reserves are shared.
  • A co-ownership agreement (Miteigentümervereinbarung) on management, costs and exit. It can exclude dissolution for a period, though good cause still allows it (§ 749(2) BGB). Entered in the land register, it also binds a later owner of a share (§ 1010 BGB).
  • Wills or an inheritance contract.
  • Advice: the notary drafts impartially; a lawyer can advise each of you on your own position, and a Steuerberater on gift, inheritance and income tax.
13

Frequently asked questions

Can an unmarried couple buy property in Germany together?

Yes, as co-owners with any shares they agree. The law gives them fewer default protections than spouses on separation and death, so agreements and wills matter more.

Do our ownership shares have to match what each of us paid?

No. If they differ, record whether the difference is a loan or a gift. A gift between unmarried partners above €20,000 over ten years can be taxable.

Can one of us be released from the joint mortgage after a separation?

Only with the bank's agreement. Until then, both of you remain liable for the whole loan, even after moving out or transferring a share.

Who pays tax on the rent if we own 70/30?

Generally, each co-owner is taxed on their share of the rent less their share of the deductible costs. Confirm the split and the filing with a Steuerberater.

15

Sources and references

Accessed 26 September 2026.

  1. §§ 741, 742, 743, 744, 745, 748, 749, 753 BGB, co-ownership in fractional shares: presumption of equal shares (§ 742); fruits by share (§ 743); joint management and preservation measures without consent (§ 744); majority by size of share, no substantial change by majority (§ 745); costs by share (§ 748); dissolution at any time, exclusion by agreement subject to good cause (§ 749); partition of land by forced auction (§ 753): Open source (and adjacent sections)
  2. § 1008 BGB, co-ownership of a thing in fractional shares: Open source
  3. § 1010 BGB, para. 1, management rules and exclusion of dissolution bind a successor in title only if registered as a charge on the share: Open source
  4. § 47 GBO, para. 1, registration with fractional shares or the governing relationship; para. 2, a GbR only if registered in the companies register: Open source
  5. § 707a BGB, entry in the companies register, "eGbR" designation: Open source
  6. Gesetz zur Modernisierung des Personengesellschaftsrechts (MoPeG) of 10 August 2021, BGBl. I p. 3436, legislative materials (Federal Court of Justice library): Open source; in force 1 January 2024, as summarised by IHK Potsdam: Open source
  7. § 421 BGB, joint and several debtors: Open source
  8. § 426 BGB, internal compensation in equal shares unless otherwise determined: Open source
  9. § 415 BGB, debt assumption agreed between debtors requires the creditor's approval: Open source
  10. Medienverbund der Notarkammern on notar.de (Bundesnotarkammer portal), article on buying property without marrying (8 February 2016): registered shares independent of financing; bank can usually pursue each partner for the whole loan: Open source
  11. notar.de, "Lebensgemeinschaft": no statutory inheritance right for unmarried partners; €20,000 allowance; suggestion to acquire jointly as a GbR: Open source
  12. Landesnotarkammer Bayern, "Hauskauf ohne Heirat: rechtliche Risiken absichern" (undated press release): gift tax where contributions and shares differ; allowances for unmarried partners and spouses: Open source
  13. § 7 ErbStG, gifts between living persons: Open source
  14. § 14 ErbStG, aggregation of acquisitions within ten years: Open source
  15. § 15 ErbStG, tax classes (spouses and registered partners class I; all other acquirers class III): Open source
  16. § 16 ErbStG, para. 1, allowances in unlimited tax liability: €500,000 spouses and registered partners, €20,000 other class III: Open source
  17. § 19 ErbStG, tax rates (class III 30% up to €6,000,000): Open source
  18. § 180 ZVG, partition auction to dissolve a co-ownership: Open source
  19. § 3 GrEStG, nos. 4, 5 and 5a, exemptions for spouses and registered partners and for former spouses or partners settling property after divorce or dissolution: Open source
  20. § 23 EStG, private disposal transactions within ten years: Open source
  21. §§ 1922, 1924, 1931 BGB, universal succession; statutory heirs are relatives and the spouse: Open source, Open source, Open source
  22. § 2276 BGB, inheritance contract before a notary: Open source
  23. § 1363 BGB, community of accrued gains as the default regime: Open source
  24. §§ 1408, 1410 BGB, marriage contract; notarial form with both present: Open source
  25. §§ 26, 26b EStG, joint assessment of spouses: Open source, Open source
  26. § 2(8) EStG, spouse rules apply to registered partners: Open source
  27. § 180 AO, para. 1 no. 2(a), separate and uniform determination where several persons share income; para. 3 no. 2, exception for cases of minor importance: Open source
  28. ELSTER, Anleitung zur Einkommensteuererklärung 2025, "Anlage V Allgemeines": Anlage V-Sonstige for income from shares in, for example, property co-ownerships (Grundstücksgemeinschaften): Open source
  29. Transfer tax rate and purchase-cost assumptions as sourced in brief 04: Berlin Senate Department for Finance (6.0%), Open source
  30. Alpha Minoris service scope: owner-supplied definitions in the brief update of 24 September 2026 (Buyer's Agent −1 to 1; Vermieter-Autopilot 1 onwards; Berlin, Dresden and Leipzig).
  31. Reference for mixed-status applicant context only: Hypofriend, mortgage for Blue Card holders (R9). No figures reproduced.

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