Bond Transfer Calculator
Calculate the cost and feasibility of moving your existing bond to a new property when selling and buying simultaneously in South Africa
Understanding Bond Transfer vs Bond Switch in South Africa How it works • Costs • Example
Bond Transfer vs Bond Switch — What Is the Difference?
A bond transfer (also called bond substitution or cession of mortgage bond) happens when you sell your current home and buy a new one simultaneously, and you want to keep the same bond — simply "moving" it to the new property. This is different from a bond switch, which means moving your bond to a new bank while staying in the same property.
In practice, most South African banks prefer to process a new bond rather than substitute the mortgaged property. The Deeds Office simultaneous transfer (simultaneous lodgement) requires careful coordination between the transferring conveyancer, the bond attorneys, and the Deeds Office.
How Bond Substitution Works
Under SA property law, a mortgage bond is registered over a specific erf or sectional title unit. To "transfer" the bond to a new property, the bank must consent to substituting the security — cancelling the bond over Property A and registering it over Property B simultaneously. Key requirements:
- Bank credit department re-assesses you under NCA affordability rules
- New property must meet the bank's LTV requirements (usually max 80% bond-to-value)
- Simultaneous registration at the Deeds Office (both cancellation and new registration)
- Bond cancellation notice to current bank (90 days or 3 months' interest penalty under NCA)
- Top-up bond needed if new property is more expensive than the transferred bond amount
Worked Example
Thandi owns a home in Randburg worth R1,500,000 with a bond balance of R1,000,000. She is buying a new home in Sandton for R1,800,000.
If she transfers her bond: she needs a top-up of approximately R300,000. Her total transferred bond = R1,300,000. Transfer costs: bond cancellation (~R4,700) + top-up registration (~R20,000) + Deeds admin (~R5,000) = approximately R29,700.
If she applies for a completely new bond (R1,620,000 at 90% LTV): new bond registration costs + cancellation = approximately R48,000. She would save approximately R18,300 by transferring.
However, if the new bank offers a rate 0.5% lower, the monthly saving of ~R670 on R1,620,000 would recoup the extra R18,300 in about 27 months. Both options have merit depending on timing and rate negotiation.
Frequently Asked Questions
Can I transfer my bond to a new property when I sell and buy simultaneously?
Yes, but it depends on your bank's policy. Technically the bond can be substituted (ceded) to the new property through simultaneous Deeds Office registration. In practice, most SA banks — including Absa, FNB, Standard Bank, and Nedbank — prefer to process a new bond rather than substitute the security, as it simplifies their internal processes and allows a full fresh NCA affordability assessment. Always confirm your bank's specific policy early in the process.
What is the 90-day notice requirement for bond cancellation?
Under the National Credit Act Section 125, you must give your bank 90 days written notice of your intention to cancel your bond. If you cancel without giving 90 days notice, the bank can charge you interest for the full 90 days on the outstanding balance. In a simultaneous sale/purchase transfer, the 90-day period runs concurrently with the Deeds Office registration process.
What does bond substitution cost in South Africa?
The costs of transferring (substituting) a bond include: bond cancellation attorney fees (R3,500–R5,500 excl. VAT), Deeds Office bond cancellation fee (R178), and if a top-up is needed, the new bond registration conveyancing fees plus Deeds Office fees. For a R300,000 top-up, total registration costs are typically R18,000–R22,000 including VAT. Compare this to R30,000–R50,000 for a full new bond registration on R1.5M+.
Does the bank re-assess my affordability if I transfer my bond?
Yes. Even if you are keeping the same bond balance, the bank is required under the National Credit Act to re-assess your affordability when the security property changes. This means a fresh credit check, income verification, and affordability calculation. If your financial position has weakened since the original bond was granted, the bank may decline the substitution and require you to apply for a reduced amount.
Is it better to transfer my bond or apply for a new one when moving house?
It depends on your specific situation. Transferring your bond saves on registration costs (especially if your new property is similarly priced), retains your existing interest rate, and avoids a new lengthy bank approval process. However, applying for a new bond with a competing bank may secure a lower rate, and many banks actually prefer the new bond route. Use the Transfer vs New Bond tab above to model both options with your actual numbers.