<PAGE>
EXHIBIT 99.1
Net Interest Margin Trust 1994-B
August, 2000
Payment: September 15, 2000
7.85% SECURITIZED NET INTEREST
MARGIN CERTIFICATES
Cusip # 393534AB8
Trust Account # 33-31958-0
Distribution Date: September 15, 2000
<TABLE>
<CAPTION>
Per $1,000
Securitized Net Interest Margin Certificates Original
-------------------------------------------- ----------
<S> <C> <C>
1. Amount Available 662,912.67
----------------
Pro rata Share of Excess from NIM 94-A 410,586.27
----------------
Interest
2. Aggregate Interest 38,250.46 0.41396602
-----------------------------------
3. Amount Applied to:
(a) accrued but unpaid Interest
4. Remaining:
(a) accrued but unpaid Interest
5. Monthly Interest 38,250.46
----------------
Principal
6. Current month's principal distribution 1,035,248.48 11.20398788
-----------------------------------
7. Remaining outstanding principal balance 4,811,955.35 52.0774389
-----------------------------------
Pool Factor 0.05207744
----------------
8. Present value of the projected remaining aggregate
cashflows of the Finance I Assets and the
Residual Assets, as of the immediately
preceding Distribution Date 281,919,732.59**
----------------
9. Aggregate principal balance of loans
refinanced by Conseco Finance 820,409.94
----------------
10. Weighted average CPR 9.85%
----------------
11. Weighted average CDR 1.93%
----------------
12. Annualized net loss percentage 1.09%
----------------
13. Delinquency 30-59 day 1.24%
----------------
60-89 day 0.52%
----------------
90+ day 0.73%
----------------
Total 30+ 2.49%
----------------
</TABLE>
US Bank Trust N. A. Paying Agent/Bondholder Relations (612) 973-5800
** Represents present value of assets for NIM 94-A, 94-B, & 95-A, after
cross-collateralization, as of 8/15/00.
<PAGE>
Net Interest Margin Trust 1994-B
August, 2000
Payment: September 15, 2000
Fee Assets
---------------------------------------------------
Guarantee Inside Fee Asset
Fees Refi Total
---------------------------------------------------
GTFC 1994-1 145,875.52 16,262.29 162,137.81
GTFC 1994-2 0.00 0.00 0.00
GTFC 1994-3 0.00 0.00 0.00
GTFC 1994-4 0.00 0.00 0.00
---------------------------------------------------
145,875.52 16,262.29 162,137.81
Total amount of Guarantee Fees and
Inside Refinance Payments 162,137.81
---------------
Subordinated Servicing Fees 230,427.90
---------------
Payment on Finance 1 Note 392,565.71
---------------
Allocable to Interest (current) 0.00
---------------
Allocable to accrued but unpaid Interest 0.00
---------------
Accrued and unpaid Trustee Fees 0.00
---------------
Allocable to Principal 0.00
---------------
Finance 1 Note Principal Balance 0.00
---------------
<PAGE>
Net Interest Margin Trust 1994-B
August, 2000
Payment: September 15, 2000
Inside
Residual Refi Total
-----------------------------------------------
GTFC 1994-1 0.00 0.00 0.00
GTFC 1994-2 125,772.78 9,638.60 135,411.38
GTFC 1994-3 35,889.11 8,265.84 44,154.95
GTFC 1994-4 79,604.92 11,175.71 90,780.63
-----------------------------------------------
241,266.81 29,080.15 270,346.96
Total Residual and Inside
Refinance Payments 270,346.96