Gabo
Personal Finance System · Rwanda

Designed and built by Gabo

TreasuryBonds.

A personal planning system for building long-term RWF income through government bonds, monthly discipline, and transparent coupon tracking.

Adjust my plan View yearly projection

Current scenario · Live model

Invest RWF 300,000 each month for 20 years

Starting July 2026, at a 11.5% annual coupon rate with 100% of net coupons reinvested, 67% expected auction fill, and idle cash earning 10% p.a.

You contribute

RWF 72M

Including extra cash

Projected value

RWF 261.3M

RWF 259M in bonds + RWF 2.3M in Aguka by June 2046

Potential annual income

RWF 28.5M

Potential monthly income

RWF 2.3M

Net coupon rate: 10.93%Expected auction fill: 67%Aguka idle return: 10% tax-exempt p.a.Government withholding tax: 5%Projection, not a guaranteed return

Assumptions

Tune the model

Set the core strategy once, then use extra cash separately when gifts, bonuses, coupons, or idle Aguka balances change your next bid.

Monthly contributionRWF 300,000
Investment horizon20 years
Investment start

The 20-year projection ends in June 2046.

Bond tenorOfficial options
Annual coupon rate11.5% p.a.BK Capital range: 10.65%–13.5%. Use the rate published for the specific NBR issuance.

Withholding tax is fixed in this model at 5% on coupon interest.

Coupon reinvestment100%
Expected auction fill67%
Aguka idle cash return10% p.a.
Starting portfolioRWF 2,200,000

Extra cash

One-time injections

0 added

Model gifts, bonuses, or other occasional money separately from your monthly plan.

Aguka balance already waitingRWF 100,000
Combined monthly purchaseRWF 900,000Aguka after draftRWF 400,000

Deposits can be any positive amount. Only the resulting bond purchase is constrained by the auction-fill assumption; unallocated money remains in Aguka.

Growth curve

Monthly portfolio steps

Portfolio Contributions
RWF 65.3MRWF 130.6MRWF 195.9MRWF 261.3MJune 2046Portfolio RWF 261.3MContributions RWF 72M
July 2026June 2046

Total cash invested

RWF 72,000,000

Monthly plan plus one-time injections

Modeled bond purchases

240

Each monthly pooled purchase is tracked as one independent lot

Net coupons earned

RWF 185,364,475

10.9% net annual rate

Coupons reinvested

RWF 185,364,475

100% reinvested

Aguka interest earned

RWF 1,746,175

10% tax-exempt p.a. on idle cash

Growth above contributions

RWF 187,110,650

RWF 50MJuly 2034 · Month 97
RWF 100MJanuary 2039 · Month 151
RWF 200MApril 2044 · Month 214

Projection

See where every franc goes

Passive income exceeds annual contributions in Year 6 · July 2031–June 2032

Suggested routine: invest on the 5th of every month, or the next business day.

Coupon dates are issuance-specific, not universally January and July. The projection estimates each monthly purchase as a separate issuance with its first coupon six months later. Use the bond's NBR prospectus for its exact payment dates.

Next BNR auction

Opens in 25d

New 15-year bond · 15Y

Book opens Sep 14, 2026, closes Sep 16, 2026, settles Sep 18, 2026.

Full calendar
YearInvested this yearIncome this yearAccount valueAnnual passive incomeDetails
Year 1July 2026 – June 2027RWF 3,600,000RWF 352,380RWF 333,213 coupons · RWF 19,167 AgukaRWF 6,152,380RWF 5,900,000 bonds · RWF 252,380 AgukaRWF 669,813RWF 644,575 bonds · RWF 25,238 Aguka
MonthBid resultBond purchaseAguka balanceAccount valueMore
Jul 2026RWF 300,000RWF 100,000 unfilledRWF 200,000Lot 001RWF 100,000RWF 2,500,000RWF 2,400,000 bonds
Aug 2026RWF 400,000RWF 200,000 unfilledRWF 200,000Lot 002RWF 200,797RWF 2,800,797RWF 2,600,000 bonds
Sep 2026RWF 500,000RWF 200,000 unfilledRWF 300,000Lot 003RWF 202,399RWF 3,102,399RWF 2,900,000 bonds
Oct 2026RWF 500,000RWF 200,000 unfilledRWF 300,000Lot 004RWF 204,013RWF 3,404,013RWF 3,200,000 bonds
Nov 2026RWF 500,000RWF 200,000 unfilledRWF 300,000Lot 005RWF 205,639RWF 3,705,639RWF 3,500,000 bonds
Dec 2026couponRWF 600,000RWF 200,000 unfilledRWF 400,000Lot 006RWF 227,454RWF 4,127,454RWF 3,900,000 bonds
Jan 2027couponRWF 500,000RWF 200,000 unfilledRWF 300,000Lot 007RWF 240,193RWF 4,440,193RWF 4,200,000 bonds
Feb 2027couponRWF 500,000RWF 200,000 unfilledRWF 300,000Lot 008RWF 253,033RWF 4,753,033RWF 4,500,000 bonds
Mar 2027couponRWF 500,000RWF 200,000 unfilledRWF 300,000Lot 009RWF 271,438RWF 5,071,438RWF 4,800,000 bonds
Apr 2027couponRWF 500,000RWF 200,000 unfilledRWF 300,000Lot 010RWF 289,990RWF 5,389,990RWF 5,100,000 bonds
May 2027couponRWF 600,000RWF 200,000 unfilledRWF 400,000Lot 011RWF 208,690RWF 5,708,690RWF 5,500,000 bonds
Jun 2027couponRWF 600,000RWF 200,000 unfilledRWF 400,000Lot 012RWF 252,380RWF 6,152,380RWF 5,900,000 bonds
Year 2July 2027 – June 2028RWF 3,600,000RWF 783,725RWF 759,288 coupons · RWF 24,437 AgukaRWF 10,536,104RWF 10,200,000 bonds · RWF 336,104 AgukaRWF 1,147,960RWF 1,114,350 bonds · RWF 33,610 Aguka
Year 3July 2028 – June 2029RWF 3,600,000RWF 1,272,409RWF 1,245,450 coupons · RWF 26,959 AgukaRWF 15,408,514RWF 15,100,000 bonds · RWF 308,514 AgukaRWF 1,680,526RWF 1,649,675 bonds · RWF 30,851 Aguka
Year 4July 2029 – June 2030RWF 3,600,000RWF 1,825,119RWF 1,791,700 coupons · RWF 33,419 AgukaRWF 20,833,633RWF 20,500,000 bonds · RWF 333,633 AgukaRWF 2,272,988RWF 2,239,625 bonds · RWF 33,363 Aguka
Year 5July 2030 – June 2031RWF 3,600,000RWF 2,430,535RWF 2,398,038 coupons · RWF 32,497 AgukaRWF 26,864,167RWF 26,500,000 bonds · RWF 364,167 AgukaRWF 2,931,542RWF 2,895,125 bonds · RWF 36,417 Aguka
Year 6July 2031 – June 2032RWF 3,600,000RWF 3,103,634RWF 3,069,925 coupons · RWF 33,709 AgukaRWF 33,567,801RWF 33,100,000 bonds · RWF 467,801 AgukaRWF 3,662,955RWF 3,616,175 bonds · RWF 46,780 Aguka
Year 7July 2032 – June 2033RWF 3,600,000RWF 3,852,812RWF 3,812,825 coupons · RWF 39,987 AgukaRWF 41,020,613RWF 39,800,000 bonds · RWF 1,220,613 AgukaRWF 4,470,211RWF 4,348,150 bonds · RWF 122,061 Aguka
Year 8July 2033 – June 2034RWF 3,600,000RWF 4,662,534RWF 4,599,425 coupons · RWF 63,109 AgukaRWF 49,283,147RWF 48,600,000 bonds · RWF 683,147 AgukaRWF 5,377,865RWF 5,309,550 bonds · RWF 68,315 Aguka
Year 9July 2034 – June 2035RWF 3,600,000RWF 5,614,129RWF 5,549,900 coupons · RWF 64,229 AgukaRWF 58,497,275RWF 57,700,000 bonds · RWF 797,275 AgukaRWF 6,383,453RWF 6,303,725 bonds · RWF 79,728 Aguka
Year 10July 2035 – June 2036RWF 3,600,000RWF 6,647,350RWF 6,576,850 coupons · RWF 70,500 AgukaRWF 68,744,625RWF 67,900,000 bonds · RWF 844,625 AgukaRWF 7,502,538RWF 7,418,075 bonds · RWF 84,463 Aguka
Year 11July 2036 – June 2037RWF 3,600,000RWF 7,794,703RWF 7,718,513 coupons · RWF 76,190 AgukaRWF 80,139,328RWF 79,200,000 bonds · RWF 939,328 AgukaRWF 8,746,533RWF 8,652,600 bonds · RWF 93,933 Aguka
Year 12July 2037 – June 2038RWF 3,600,000RWF 9,074,681RWF 8,991,275 coupons · RWF 83,406 AgukaRWF 92,814,009RWF 91,900,000 bonds · RWF 914,009 AgukaRWF 10,131,476RWF 10,040,075 bonds · RWF 91,401 Aguka
Year 13July 2038 – June 2039RWF 3,600,000RWF 10,502,296RWF 10,411,525 coupons · RWF 90,771 AgukaRWF 106,916,306RWF 105,900,000 bonds · RWF 1,016,306 AgukaRWF 11,671,206RWF 11,569,575 bonds · RWF 101,631 Aguka
Year 14July 2039 – June 2040RWF 3,600,000RWF 12,087,090RWF 11,984,725 coupons · RWF 102,365 AgukaRWF 122,603,396RWF 121,000,000 bonds · RWF 1,603,396 AgukaRWF 13,379,590RWF 13,219,250 bonds · RWF 160,340 Aguka
Year 15July 2040 – June 2041RWF 3,600,000RWF 13,825,046RWF 13,694,488 coupons · RWF 130,558 AgukaRWF 140,028,442RWF 138,600,000 bonds · RWF 1,428,442 AgukaRWF 15,284,894RWF 15,142,050 bonds · RWF 142,844 Aguka
Year 16July 2041 – June 2042RWF 3,600,000RWF 15,794,204RWF 15,655,525 coupons · RWF 138,679 AgukaRWF 159,422,646RWF 157,900,000 bonds · RWF 1,522,646 AgukaRWF 17,402,840RWF 17,250,575 bonds · RWF 152,265 Aguka
Year 17July 2042 – June 2043RWF 3,600,000RWF 17,969,997RWF 17,818,675 coupons · RWF 151,322 AgukaRWF 180,992,643RWF 179,200,000 bonds · RWF 1,792,643 AgukaRWF 19,756,864RWF 19,577,600 bonds · RWF 179,264 Aguka
Year 18July 2043 – June 2044RWF 3,600,000RWF 20,381,124RWF 20,211,250 coupons · RWF 169,874 AgukaRWF 204,973,767RWF 203,000,000 bonds · RWF 1,973,767 AgukaRWF 22,375,127RWF 22,177,750 bonds · RWF 197,377 Aguka
Year 19July 2044 – June 2045RWF 3,600,000RWF 23,069,879RWF 22,882,413 coupons · RWF 187,467 AgukaRWF 231,643,646RWF 229,500,000 bonds · RWF 2,143,646 AgukaRWF 25,287,240RWF 25,072,875 bonds · RWF 214,365 Aguka
Year 20July 2045 – June 2046RWF 3,600,000RWF 26,067,004RWF 25,859,475 coupons · RWF 207,529 AgukaRWF 261,310,650RWF 259,000,000 bonds · RWF 2,310,650 AgukaRWF 28,526,815RWF 28,295,750 bonds · RWF 231,065 Aguka

Model guide

Useful, transparent, intentionally conservative.

This planner models monthly contributions, partial Treasury bond auction allocation, and Aguka as the idle-cash parking layer. Coupons, unfilled bids, Aguka returns, and matured principal are pooled into future bid attempts.

01

Market price risk

Bond prices can fluctuate if sold before maturity.

02

Holding to maturity

Holding to maturity avoids market-price loss if the issuer pays as agreed.

03

Coupon and tenor

BK Capital states tenors of 3, 5, 7, 10, 15, 20 years and annual coupon rates from 10.65% to 13.5%, depending on the issuance.

04

Auction fill risk

The model defaults to 67% allocation based on the BNR historical sold/applied pattern, not 100% allocation.

05

Aguka idle cash

Unfilled bond money is modeled in Aguka at 10% tax-exempt annual return until it is used for another bid.

06

Secondary market

Buying or selling before maturity carries a 0.049% commission on turnover on each side, according to BK Capital.

07

Projection only

This model is educational and does not guarantee future returns.

08

Privacy boundary

Simulation inputs remain on your device; only authenticated purchases are stored in the private portfolio database.